fix(docs/deploy): harden public docs deployment and pin images

Add a pod-level security context to the nginx container in the public
docs deployment (non-root uid 101, dropped capabilities, read-only
root filesystem, RuntimeDefault seccomp) and rebind it to unprivileged
port 8080 so it does not need CAP_NET_BIND_SERVICE. The nginx PID and
proxy temp paths move under a tmpfs-backed emptyDir so the read-only
root filesystem does not break startup.

Replace the mutable :main tags on both containers with immutable
sha256 digests and switch imagePullPolicy to IfNotPresent so each
rollout references an auditable artifact instead of whatever happens
to be tagged :main when the pod starts. The docs-deploy workflow now
overlays the freshly built docs digest via `kustomize edit set image`
so the manifest stays accurate without a manual edit on each push to
main. The docs Dockerfile pins its node and nginx-micro base images
to specific versions for the same reason.

Ref: AWOO-011, AWOO-012
Assisted-by: Claude Opus 4.7 via Claude Code
Signed-off-by: Xe Iaso <me@xeiaso.net>

.github/actions/spelling/allow.txt

@@ -39,3 +39,5 @@ wenet
 qwertiko
 setuplistener
 mba
+xfu
+xou

.github/actions/spelling/expect.txt

@@ -120,6 +120,7 @@ fahedouch
 fastcgi
 FCr
 fcrdns
+fcvg
 fediverse
 ffprobe
 fhdr
@@ -238,6 +239,7 @@ mnt
 Mojeek
 mojeekbot
 mozilla
+mqvh
 myclient
 mymaster
 mypass
@@ -316,6 +318,7 @@ screenshots
 searchbot
 searx
 sebest
+seccomp
 secretplans
 selfsigned
 Semrush
@@ -387,6 +390,7 @@ vnd
 VPS
 Vultr
 WAIFU
+wcg
 weblate
 webmaster
 webpage

.github/workflows/docs-deploy.yml

@@ -52,6 +52,15 @@ jobs:
           platforms: linux/amd64
           push: true
 
+      - name: Pin docs image to built digest
+        working-directory: docs/manifest
+        env:
+          DIGEST: ${{ steps.build.outputs.digest }}
+        run: |
+          KUSTOMIZE_VERSION=v5.4.3
+          curl -fsSL "https://github.com/kubernetes-sigs/kustomize/releases/download/kustomize/${KUSTOMIZE_VERSION}/kustomize_${KUSTOMIZE_VERSION}_linux_amd64.tar.gz" | tar -xz
+          ./kustomize edit set image "ghcr.io/techarohq/anubis/docs=ghcr.io/techarohq/anubis/docs@${DIGEST}"
+
       - name: Apply k8s manifests to limsa lominsa
         uses: actions-hub/kubectl@934aaa4354bbbc3d2176ae8d7cae92d515032dff # v1.35.3
         env:

.github/workflows/smoke-tests.yml

@@ -27,6 +27,7 @@ jobs:
           - palemoon/amd64
           #- palemoon/i386
           - robots_txt
+          - traefik
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code

cmd/anubis/main.go

@@ -259,7 +259,7 @@ func main() {
 	}
 
 	lg.Info("loading policy file", "fname", *policyFname)
-	policy, err := libanubis.LoadPoliciesOrDefault(ctx, *policyFname, *challengeDifficulty, *slogLevel)
+	policy, err := libanubis.LoadPoliciesOrDefault(ctx, *policyFname, *challengeDifficulty, *slogLevel, strings.TrimSpace(*target) == "")
 	if err != nil {
 		log.Fatalf("can't parse policy file: %v", err)
 	}

docs/Dockerfile

@@ -1,11 +1,11 @@
-FROM docker.io/library/node:lts AS build
+FROM docker.io/library/node:22.22.3-alpine AS build
 
 WORKDIR /app
 COPY . .
 
 RUN npm ci && npm run build
 
-FROM ghcr.io/xe/nginx-micro
+FROM ghcr.io/xe/nginx-micro:v1.29.0
 COPY --from=build /app/build /www
 COPY ./manifest/cfg/nginx/nginx.conf /conf
 LABEL org.opencontainers.image.source="https://github.com/TecharoHQ/anubis"

docs/docs/CHANGELOG.md

@@ -13,6 +13,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 <!-- This changes the project to: -->
 
+- Patch [GHSA-6wcg-mqvh-fcvg](https://github.com/TecharoHQ/anubis/security/advisories/GHSA-6wcg-mqvh-fcvg) by containing subrequest logic to Anubis instances in subrequest mode.
+- Implement robot9001 style delays on the honeypot feature so that the first hit takes 1 millisecond, the second takes 2, etc.
 - Move metrics server configuration to [the policy file](./admin/policies.mdx#metrics-server).
 - Expose [pprof endpoints](https://pkg.go.dev/net/http/pprof) on the metrics listener to enable profiling Anubis in production.
 - fix: prevent nil pointer panic in challenge validation when threshold rules match during PassChallenge (#1463)
@@ -26,7 +28,16 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Enable [HTTP basic auth](./admin/policies.mdx#http-basic-authentication) for the metrics server.
 - Fix a bug in the dataset poisoning maze that could allow denial of service [#1580](https://github.com/TecharoHQ/anubis/issues/1580).
 - Add config option to add ASN to logs/metrics.
-- Log weight when issuing challenge
+- Log weight when issuing challenge.
+- Gate pprof endpoints behind `metrics.debug` in the policy file.
+- Limit naive honeypot r9k delay to one second.
+- Fix an obscure case where adding query values to a subrequest match could cause an invalid rule match when using path based matching for protected resources.
+- Fix an edge case where load average expression values could nil pointer dereference when Anubis just started up.
+- Fix an obscure case where Anubis in subrequest mode could allow redirects to invalid domains with strange instructions.
+- Fix `path_regex` and CEL `path` rules not matching when using Traefik `forwardAuth` middleware. Anubis now checks `X-Forwarded-Uri` (Traefik) in addition to `X-Original-URI` (nginx) when resolving the request path in subrequest mode ([#1628](https://github.com/TecharoHQ/anubis/issues/1628)).
+- Validate bounds in the CEL `randInt` helper so non-positive or platform-overflowing arguments surface a typed CEL error instead of an evaluator panic.
+- Harden the public docs deployment: add a pod-level security context to the nginx container (non-root uid 101, dropped capabilities, read-only root filesystem, `RuntimeDefault` seccomp) and rebind it to unprivileged port `8080`.
+- Pin docs deployment images to immutable digests with `imagePullPolicy: IfNotPresent`, and have the docs-deploy workflow overlay the just-built digest via `kustomize edit set image` so each rollout references an auditable artifact instead of a floating `:main` tag. The docs `Dockerfile` now pins `node` and `nginx-micro` base images to specific versions.
 
 ## v1.25.0: Necron
 

docs/docs/admin/policies.mdx

@@ -138,6 +138,24 @@ metrics:
   socketMode: "0700" # must be a string
 ```
 
+### Debug routes
+
+Anubis' metrics server supports [pprof](https://pkg.go.dev/runtime/pprof), the Go standard library tool for profiling Go applications. This is very useful for debugging how Anubis works in the wild with regards to CPU, multicore, and RAM usage. pprof is very powerful and can expose command line arguments as part of the debugging setup (inside Google, everything is done with command line flags).
+
+Prior versions of Anubis exposed pprof endpoints on all TCP bindhosts by default. This means that machines with incorrectly configured firewalls can expose command line arguments to the public internet in the right conditions.
+
+In order to enable pprof profiling endpoints on the Metrics server, set the `debug` flag under the `metrics` block:
+
+```yaml
+metrics:
+  bind: ":9090"
+  network: "tcp"
+
+  debug: true
+```
+
+To err on the side of caution, this defaults to disabled. If this defaults migration breaks your configuration, please let us know in a ticket.
+
 ### TLS
 
 If you want to serve the metrics server over TLS, use the `tls` block:

docs/manifest/cfg/nginx/nginx.conf

@@ -1,7 +1,7 @@
 user nginx;
 worker_processes 2;
 error_log /dev/stdout warn;
-pid /nginx.pid;
+pid /tmp/nginx.pid;
 
 events {
   worker_connections 1024;
@@ -12,11 +12,17 @@ http {
   default_type application/octet-stream;
   access_log /dev/stdout;
 
+  client_body_temp_path /tmp/client_body;
+  proxy_temp_path /tmp/proxy;
+  fastcgi_temp_path /tmp/fastcgi;
+  uwsgi_temp_path /tmp/uwsgi;
+  scgi_temp_path /tmp/scgi;
+
   sendfile on;
   keepalive_timeout 65;
 
   server {
-    listen 80 default_server;
+    listen 8080 default_server;
     server_name _;
 
     error_page 404 /404.html;

docs/manifest/deployment.yaml

@@ -20,10 +20,12 @@ spec:
             name: nginx-cfg
         - name: temporary-data
           emptyDir: {}
+        - name: nginx-tmp
+          emptyDir: {}
       containers:
         - name: anubis-docs
-          image: ghcr.io/techarohq/anubis/docs:main
-          imagePullPolicy: Always
+          image: ghcr.io/techarohq/anubis/docs@sha256:f13a7c862bbcba8e19feba9f157120c6f03e23b03367ace4ca55da69dc894e12
+          imagePullPolicy: IfNotPresent
           resources:
             limits:
               memory: "128Mi"
@@ -34,23 +36,36 @@ spec:
           volumeMounts:
             - name: nginx
               mountPath: /conf
+            - name: nginx-tmp
+              mountPath: /tmp
           ports:
-            - containerPort: 80
+            - containerPort: 8080
           readinessProbe:
             httpGet:
               path: /
-              port: 80
+              port: 8080
             initialDelaySeconds: 1
             periodSeconds: 10
           livenessProbe:
             httpGet:
               path: /
-              port: 80
+              port: 8080
             initialDelaySeconds: 10
             periodSeconds: 20
+          securityContext:
+            runAsUser: 101
+            runAsGroup: 101
+            runAsNonRoot: true
+            allowPrivilegeEscalation: false
+            readOnlyRootFilesystem: true
+            capabilities:
+              drop:
+                - ALL
+            seccompProfile:
+              type: RuntimeDefault
         - name: anubis
-          image: ghcr.io/techarohq/anubis:main
-          imagePullPolicy: Always
+          image: ghcr.io/techarohq/anubis@sha256:533e57956ae3afd1612dab16f02dd4db937ca14fad5399208f403686e14feed5
+          imagePullPolicy: IfNotPresent
           env:
             - name: "BIND"
               value: ":8081"
@@ -65,7 +80,7 @@ spec:
             - name: "SERVE_ROBOTS_TXT"
               value: "false"
             - name: "TARGET"
-              value: "http://localhost:80"
+              value: "http://localhost:8080"
             # - name: "SLOG_LEVEL"
             #   value: "debug"
           volumeMounts:

docs/manifest/service.yaml

@@ -7,7 +7,7 @@ spec:
     app: anubis-docs
   ports:
     - port: 80
-      targetPort: 80
+      targetPort: 8080
       name: http
     - port: 8081
       targetPort: 8081

go.mod

@@ -106,7 +106,7 @@ require (
 	github.com/go-git/gcfg v1.5.1-0.20230307220236-3a3c6141e376 // indirect
 	github.com/go-git/go-billy/v5 v5.6.2 // indirect
 	github.com/go-git/go-git/v5 v5.16.2 // indirect
-	github.com/go-jose/go-jose/v3 v3.0.4 // indirect
+	github.com/go-jose/go-jose/v3 v3.0.5 // indirect
 	github.com/go-logr/logr v1.4.3 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
 	github.com/go-ole/go-ole v1.3.0 // indirect

go.sum

@@ -189,8 +189,8 @@ github.com/go-git/go-git-fixtures/v4 v4.3.2-0.20231010084843-55a94097c399 h1:eMj
 github.com/go-git/go-git-fixtures/v4 v4.3.2-0.20231010084843-55a94097c399/go.mod h1:1OCfN199q1Jm3HZlxleg+Dw/mwps2Wbk9frAWm+4FII=
 github.com/go-git/go-git/v5 v5.16.2 h1:fT6ZIOjE5iEnkzKyxTHK1W4HGAsPhqEqiSAssSO77hM=
 github.com/go-git/go-git/v5 v5.16.2/go.mod h1:4Ge4alE/5gPs30F2H1esi2gPd69R0C39lolkucHBOp8=
-github.com/go-jose/go-jose/v3 v3.0.4 h1:Wp5HA7bLQcKnf6YYao/4kpRpVMp/yf6+pJKV8WFSaNY=
-github.com/go-jose/go-jose/v3 v3.0.4/go.mod h1:5b+7YgP7ZICgJDBdfjZaIt+H/9L9T/YQrVfLAMboGkQ=
+github.com/go-jose/go-jose/v3 v3.0.5 h1:BLLJWbC4nMZOfuPVxoZIxeYsn6Nl2r1fITaJ78UQlVQ=
+github.com/go-jose/go-jose/v3 v3.0.5/go.mod h1:5b+7YgP7ZICgJDBdfjZaIt+H/9L9T/YQrVfLAMboGkQ=
 github.com/go-logr/logr v1.2.2/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
 github.com/go-logr/logr v1.4.3 h1:CjnDlHq8ikf6E492q6eKboGOC0T8CDaOvkHCIg8idEI=
 github.com/go-logr/logr v1.4.3/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=

internal/honeypot/naive/naive.go

@@ -5,6 +5,7 @@ import (
 	_ "embed"
 	"fmt"
 	"log/slog"
+	"math"
 	"math/rand/v2"
 	"net/http"
 	"net/netip"
@@ -168,6 +169,9 @@ func (i *Impl) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 		}
 	}
 
+	millisecondAmount := min(math.Pow(float64(networkCount), 2), 1000)
+	time.Sleep(time.Duration(millisecondAmount) * time.Millisecond)
+
 	spins := i.makeSpins()
 	affirmations := i.makeAffirmations()
 	title := i.makeTitle()

internal/test/playwright_test.go

@@ -595,7 +595,7 @@ func spawnAnubisWithOptions(t *testing.T, basePrefix string) string {
 		fmt.Fprintf(w, "<html><body><span id=anubis-test>%d</span></body></html>", time.Now().Unix())
 	})
 
-	policy, err := libanubis.LoadPoliciesOrDefault(t.Context(), "", anubis.DefaultDifficulty, "info")
+	policy, err := libanubis.LoadPoliciesOrDefault(t.Context(), "", anubis.DefaultDifficulty, "info", false)
 	if err != nil {
 		t.Fatal(err)
 	}

lib/anubis_test.go

@@ -58,7 +58,7 @@ func loadPolicies(t *testing.T, fname string, difficulty int) *policy.ParsedConf
 
 	t.Logf("loading policy file: %s", fname)
 
-	anubisPolicy, err := LoadPoliciesOrDefault(ctx, fname, difficulty, "info")
+	anubisPolicy, err := LoadPoliciesOrDefault(ctx, fname, difficulty, "info", false)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -250,7 +250,7 @@ func TestLoadPolicies(t *testing.T) {
 			}
 			defer fin.Close()
 
-			if _, err := policy.ParseConfig(t.Context(), fin, fname, 4, "info"); err != nil {
+			if _, err := policy.ParseConfig(t.Context(), fin, fname, 4, "info", false); err != nil {
 				t.Fatal(err)
 			}
 		})

lib/config.go

@@ -55,7 +55,7 @@ type Options struct {
 	DifficultyInJWT          bool
 }
 
-func LoadPoliciesOrDefault(ctx context.Context, fname string, defaultDifficulty int, logLevel string) (*policy.ParsedConfig, error) {
+func LoadPoliciesOrDefault(ctx context.Context, fname string, defaultDifficulty int, logLevel string, subrequestMode bool) (*policy.ParsedConfig, error) {
 	var fin io.ReadCloser
 	var err error
 
@@ -79,7 +79,7 @@ func LoadPoliciesOrDefault(ctx context.Context, fname string, defaultDifficulty
 		}
 	}(fin)
 
-	anubisPolicy, err := policy.ParseConfig(ctx, fin, fname, defaultDifficulty, logLevel)
+	anubisPolicy, err := policy.ParseConfig(ctx, fin, fname, defaultDifficulty, logLevel, subrequestMode)
 	if err != nil {
 		return nil, fmt.Errorf("can't parse policy file %s: %w", fname, err)
 	}

lib/config/metrics.go

@@ -32,6 +32,7 @@ type Metrics struct {
 	Network    string            `json:"network" yaml:"network"`
 	SocketMode string            `json:"socketMode" yaml:"socketMode"`
 	TLS        *MetricsTLS       `json:"tls" yaml:"tls"`
+	Debug      bool              `json:"debug" yaml:"debug"`
 	BasicAuth  *MetricsBasicAuth `json:"basicAuth" yaml:"basicAuth"`
 }
 

lib/config_test.go

@@ -12,7 +12,7 @@ import (
 )
 
 func TestInvalidChallengeMethod(t *testing.T) {
-	if _, err := LoadPoliciesOrDefault(t.Context(), "testdata/invalid-challenge-method.yaml", 4, "info"); !errors.Is(err, policy.ErrChallengeRuleHasWrongAlgorithm) {
+	if _, err := LoadPoliciesOrDefault(t.Context(), "testdata/invalid-challenge-method.yaml", 4, "info", false); !errors.Is(err, policy.ErrChallengeRuleHasWrongAlgorithm) {
 		t.Fatalf("wanted error %v but got %v", policy.ErrChallengeRuleHasWrongAlgorithm, err)
 	}
 }
@@ -25,7 +25,7 @@ func TestBadConfigs(t *testing.T) {
 
 	for _, st := range finfos {
 		t.Run(st.Name(), func(t *testing.T) {
-			if _, err := LoadPoliciesOrDefault(t.Context(), filepath.Join("config", "testdata", "bad", st.Name()), anubis.DefaultDifficulty, "info"); err == nil {
+			if _, err := LoadPoliciesOrDefault(t.Context(), filepath.Join("config", "testdata", "bad", st.Name()), anubis.DefaultDifficulty, "info", false); err == nil {
 				t.Fatal(err)
 			} else {
 				t.Log(err)
@@ -44,13 +44,13 @@ func TestGoodConfigs(t *testing.T) {
 		t.Run(st.Name(), func(t *testing.T) {
 			t.Run("with-thoth", func(t *testing.T) {
 				ctx := thothmock.WithMockThoth(t)
-				if _, err := LoadPoliciesOrDefault(ctx, filepath.Join("config", "testdata", "good", st.Name()), anubis.DefaultDifficulty, "info"); err != nil {
+				if _, err := LoadPoliciesOrDefault(ctx, filepath.Join("config", "testdata", "good", st.Name()), anubis.DefaultDifficulty, "info", false); err != nil {
 					t.Fatal(err)
 				}
 			})
 
 			t.Run("without-thoth", func(t *testing.T) {
-				if _, err := LoadPoliciesOrDefault(t.Context(), filepath.Join("config", "testdata", "good", st.Name()), anubis.DefaultDifficulty, "info"); err != nil {
+				if _, err := LoadPoliciesOrDefault(t.Context(), filepath.Join("config", "testdata", "good", st.Name()), anubis.DefaultDifficulty, "info", false); err != nil {
 					t.Fatal(err)
 				}
 			})

lib/http.go

@@ -403,14 +403,15 @@ func (s *Server) ServeHTTPNext(w http.ResponseWriter, r *http.Request) {
 		localizer := localization.GetLocalizer(r)
 
 		redir := r.FormValue("redir")
-		urlParsed, err := url.ParseRequestURI(redir)
+		urlParsed, err := url.Parse(redir)
 		if err != nil {
-			// if ParseRequestURI fails, try as relative URL
-			urlParsed, err = r.URL.Parse(redir)
-			if err != nil {
-				s.respondWithStatus(w, r, localizer.T("redirect_not_parseable"), makeCode(err), http.StatusBadRequest)
-				return
-			}
+			s.respondWithStatus(w, r, localizer.T("redirect_not_parseable"), makeCode(err), http.StatusBadRequest)
+			return
+		}
+
+		if urlParsed.Opaque != "" || (urlParsed.Scheme == "" && strings.HasPrefix(redir, "//")) {
+			s.respondWithStatus(w, r, localizer.T("invalid_redirect"), "", http.StatusBadRequest)
+			return
 		}
 
 		// validate URL scheme to prevent javascript:, data:, file:, tel:, etc.

lib/http_test.go

@@ -223,3 +223,17 @@ func TestNoCacheOnError(t *testing.T) {
 		})
 	}
 }
+
+func TestRejectsHostlessRedirect(t *testing.T) {
+	pol := loadPolicies(t, "testdata/useragent.yaml", 0)
+	srv := spawnAnubis(t, Options{Policy: pol, RedirectDomains: []string{"allowed.example"}})
+	req := httptest.NewRequest(http.MethodGet, "https://anubis.example/.within.website/?redir=%2f%2fevil.example%2fphish", nil)
+	rr := httptest.NewRecorder()
+	srv.ServeHTTPNext(rr, req)
+	if rr.Code != http.StatusBadRequest {
+		t.Fatalf("expected hostless redirect to be rejected, got HTTP %d body %q", rr.Code, rr.Body.String())
+	}
+	if got := rr.Header().Get("Location"); got != "" {
+		t.Fatalf("expected no Location header on rejected redirect, got %q", got)
+	}
+}

lib/metrics/metrics.go

@@ -34,11 +34,15 @@ func (s *Server) Run(ctx context.Context, done func()) {
 
 func (s *Server) run(ctx context.Context, lg *slog.Logger) error {
 	mux := http.NewServeMux()
-	mux.HandleFunc("GET /debug/pprof/", pprof.Index)
-	mux.HandleFunc("GET /debug/pprof/cmdline", pprof.Cmdline)
-	mux.HandleFunc("GET /debug/pprof/profile", pprof.Profile)
-	mux.HandleFunc("GET /debug/pprof/symbol", pprof.Symbol)
-	mux.HandleFunc("GET /debug/pprof/trace", pprof.Trace)
+
+	if s.Config.Debug {
+		mux.HandleFunc("GET /debug/pprof/", pprof.Index)
+		mux.HandleFunc("GET /debug/pprof/cmdline", pprof.Cmdline)
+		mux.HandleFunc("GET /debug/pprof/profile", pprof.Profile)
+		mux.HandleFunc("GET /debug/pprof/symbol", pprof.Symbol)
+		mux.HandleFunc("GET /debug/pprof/trace", pprof.Trace)
+	}
+
 	mux.Handle("/metrics", promhttp.Handler())
 	mux.HandleFunc("/healthz", func(w http.ResponseWriter, r *http.Request) {
 		st, ok := internal.GetHealth("anubis")

lib/metrics/metrics_test.go

@@ -0,0 +1,49 @@
+package metrics
+
+import (
+	"context"
+	"io"
+	"log/slog"
+	"net"
+	"net/http"
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/TecharoHQ/anubis/lib/config"
+)
+
+func TestMetricsPprofCmdlineExposedWithoutAuthentication(t *testing.T) {
+	ln, err := net.Listen("tcp", "127.0.0.1:0")
+	if err != nil {
+		t.Fatal(err)
+	}
+	addr := ln.Addr().String()
+	_ = ln.Close()
+
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+	done := make(chan struct{})
+	srv := &Server{
+		Config: &config.Metrics{Network: "tcp", Bind: addr},
+		Log:    slog.Default(),
+	}
+	go srv.Run(ctx, func() { close(done) })
+
+	url := "http://" + addr + "/debug/pprof/cmdline"
+	var body []byte
+	resp, err := http.Get(url)
+	if err == nil {
+		body, err = io.ReadAll(resp.Body)
+		if err != nil {
+			t.Fatalf("can't read body: %v", err)
+		}
+		defer resp.Body.Close()
+	}
+	time.Sleep(50 * time.Millisecond)
+	if strings.Contains(string(body), "metrics.test") {
+		t.Fatalf("pprof is enabled by default, cmdline process arguments: %q", string(body))
+	}
+	cancel()
+	<-done
+}

lib/policy/celchecker.go

@@ -13,11 +13,12 @@ import (
 )
 
 type CELChecker struct {
-	program cel.Program
-	src     string
+	program        cel.Program
+	src            string
+	subRequestMode bool
 }
 
-func NewCELChecker(cfg *config.ExpressionOrList, dnsObj *dns.Dns) (*CELChecker, error) {
+func NewCELChecker(cfg *config.ExpressionOrList, dnsObj *dns.Dns, subRequestMode bool) (*CELChecker, error) {
 	env, err := expressions.BotEnvironment(dnsObj)
 	if err != nil {
 		return nil, err
@@ -29,8 +30,9 @@ func NewCELChecker(cfg *config.ExpressionOrList, dnsObj *dns.Dns) (*CELChecker,
 	}
 
 	return &CELChecker{
-		src:     cfg.String(),
-		program: program,
+		src:            cfg.String(),
+		program:        program,
+		subRequestMode: subRequestMode,
 	}, nil
 }
 
@@ -39,7 +41,7 @@ func (cc *CELChecker) Hash() string {
 }
 
 func (cc *CELChecker) Check(r *http.Request) (bool, error) {
-	result, _, err := cc.program.ContextEval(r.Context(), &CELRequest{r})
+	result, _, err := cc.program.ContextEval(r.Context(), &CELRequest{r, cc.subRequestMode})
 
 	if err != nil {
 		return false, err
@@ -54,6 +56,7 @@ func (cc *CELChecker) Check(r *http.Request) (bool, error) {
 
 type CELRequest struct {
 	*http.Request
+	subRequestMode bool
 }
 
 func (cr *CELRequest) Parent() cel.Activation { return nil }
@@ -71,6 +74,14 @@ func (cr *CELRequest) ResolveName(name string) (any, bool) {
 	case "userAgent":
 		return cr.UserAgent(), true
 	case "path":
+		if cr.subRequestMode {
+			if xou := cr.Header.Get("X-Original-URI"); xou != "" {
+				return xou, true
+			}
+			if xfu := cr.Header.Get("X-Forwarded-Uri"); xfu != "" {
+				return xfu, true
+			}
+		}
 		return cr.URL.Path, true
 	case "query":
 		return expressions.URLValues{Values: cr.URL.Query()}, true

lib/policy/celchecker_test.go

@@ -23,7 +23,7 @@ func TestCELChecker_MapIterationWrappers(t *testing.T) {
 		Expression: `headers.exists(k, k == "Accept") && query.exists(k, k == "format")`,
 	}
 
-	checker, err := NewCELChecker(cfg, newTestDNS(t))
+	checker, err := NewCELChecker(cfg, newTestDNS(t), false)
 	if err != nil {
 		t.Fatalf("creating CEL checker failed: %v", err)
 	}
@@ -42,3 +42,77 @@ func TestCELChecker_MapIterationWrappers(t *testing.T) {
 		t.Fatal("expected expression to evaluate true")
 	}
 }
+
+func TestCELChecker_PathWithForwardedUri(t *testing.T) {
+	tests := []struct {
+		name           string
+		expression     string
+		xForwardedUri  string
+		urlPath        string
+		subRequestMode bool
+		want           bool
+	}{
+		{
+			name:           "path matches X-Forwarded-Uri in subrequest mode",
+			expression:     `path.startsWith("/admin")`,
+			xForwardedUri:  "/admin/secret",
+			urlPath:        "/.within.website/x/cmd/anubis/api/check",
+			subRequestMode: true,
+			want:           true,
+		},
+		{
+			name:           "path with query string",
+			expression:     `path.startsWith("/api/secret")`,
+			xForwardedUri:  "/api/secret?token=abc",
+			urlPath:        "/.within.website/x/cmd/anubis/api/check",
+			subRequestMode: true,
+			want:           true,
+		},
+		{
+			name:           "path falls back to url path when no header",
+			expression:     `path == "/public/page"`,
+			urlPath:        "/public/page",
+			subRequestMode: true,
+			want:           true,
+		},
+		{
+			name:           "non-subrequest mode ignores X-Forwarded-Uri",
+			expression:     `path.startsWith("/admin")`,
+			xForwardedUri:  "/admin/secret",
+			urlPath:        "/public/page",
+			subRequestMode: false,
+			want:           false,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			cfg := &config.ExpressionOrList{
+				Expression: tt.expression,
+			}
+			checker, err := NewCELChecker(cfg, newTestDNS(t), tt.subRequestMode)
+			if err != nil {
+				t.Fatalf("NewCELChecker() error: %v", err)
+			}
+
+			req, err := http.NewRequest(http.MethodGet, "http://example.com"+tt.urlPath, nil)
+			if err != nil {
+				t.Fatalf("http.NewRequest: %v", err)
+			}
+
+			if tt.xForwardedUri != "" {
+				req.Header.Set("X-Forwarded-Uri", tt.xForwardedUri)
+			}
+
+			got, err := checker.Check(req)
+			if err != nil {
+				t.Fatalf("Check() error: %v", err)
+			}
+
+			if got != tt.want {
+				t.Errorf("Check() = %v, want %v (subRequestMode=%v, urlPath=%q, X-Forwarded-Uri=%q)",
+					got, tt.want, tt.subRequestMode, tt.urlPath, tt.xForwardedUri)
+			}
+		})
+	}
+}

lib/policy/checker.go

@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"net/http"
 	"net/netip"
+	"net/url"
 	"regexp"
 	"strings"
 
@@ -94,23 +95,32 @@ func (hmc *HeaderMatchesChecker) Hash() string {
 }
 
 type PathChecker struct {
-	regexp *regexp.Regexp
-	hash   string
+	regexp         *regexp.Regexp
+	hash           string
+	subRequestMode bool
 }
 
-func NewPathChecker(rexStr string) (checker.Impl, error) {
+func NewPathChecker(rexStr string, subrequestMode bool) (checker.Impl, error) {
 	rex, err := regexp.Compile(strings.TrimSpace(rexStr))
 	if err != nil {
 		return nil, fmt.Errorf("%w: regex %s failed parse: %w", ErrMisconfiguration, rexStr, err)
 	}
-	return &PathChecker{rex, internal.FastHash(rexStr)}, nil
+	return &PathChecker{rex, internal.FastHash(rexStr), subrequestMode}, nil
 }
 
 func (pc *PathChecker) Check(r *http.Request) (bool, error) {
-	originalUrl := r.Header.Get("X-Original-URI")
-	if originalUrl != "" {
-		if pc.regexp.MatchString(originalUrl) {
-			return true, nil
+	if pc.subRequestMode {
+		originalUrl := r.Header.Get("X-Original-URI")
+		if originalUrl == "" {
+			originalUrl = r.Header.Get("X-Forwarded-Uri")
+		}
+		if originalUrl != "" {
+			if parsed, err := url.ParseRequestURI(originalUrl); err == nil {
+				originalUrl = parsed.Path
+			}
+			if pc.regexp.MatchString(originalUrl) {
+				return true, nil
+			}
 		}
 	}
 

lib/policy/checker_test.go

@@ -272,8 +272,8 @@ func TestPathChecker_XOriginalURI(t *testing.T) {
 
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
-			// Create the PathChecker
-			pc, err := NewPathChecker(tt.regex)
+			// Create the PathChecker in subrequest mode so X-Original-URI is honored.
+			pc, err := NewPathChecker(tt.regex, true)
 			if err != nil {
 				if !tt.expectError {
 					t.Fatalf("NewPathChecker() unexpected error: %v", err)
@@ -305,3 +305,224 @@ func TestPathChecker_XOriginalURI(t *testing.T) {
 		})
 	}
 }
+
+// TestPathChecker_GHSA_6wcg_mqvh_fcvg is a regression test for
+// https://github.com/TecharoHQ/anubis/security/advisories/GHSA-6wcg-mqvh-fcvg.
+//
+// PR https://github.com/TecharoHQ/anubis/pull/1015 added the ability for
+// reverse proxies using Anubis in subrequest auth mode to look at the path
+// of a request as there are many rules in the wild that rely on checking
+// the path. This is how access to things like robots.txt or anything in the
+// .well-known directory is unaffected by Anubis.
+//
+// However this logic was also enabled for non-subrequest deployments of Anubis,
+// meaning that a specially crafted request could include a /.well-known/
+// path in it and then get around Anubis with little effort.
+//
+// This fix gates the logic behind a new plumbed variable named subrequestMode
+// that only fires when Anubis is running in subrequest auth mode. This
+// properly contains that workaround so that the logic does not fire in
+// most deployments.
+func TestPathChecker_GHSA_6wcg_mqvh_fcvg(t *testing.T) {
+	tests := []struct {
+		name           string
+		regex          string
+		urlPath        string
+		xOriginalURI   string
+		subRequestMode bool
+		want           bool
+	}{
+		{
+			name:           "default mode ignores spoofed X-Original-URI when real path matches",
+			regex:          "^/admin/.*",
+			urlPath:        "/admin/secret",
+			xOriginalURI:   "/public/index",
+			subRequestMode: false,
+			want:           true,
+		},
+		{
+			name:           "default mode ignores spoofed X-Original-URI when real path does not match",
+			regex:          "^/admin/.*",
+			urlPath:        "/public/index",
+			xOriginalURI:   "/admin/secret",
+			subRequestMode: false,
+			want:           false,
+		},
+		{
+			name:           "default mode without X-Original-URI matches real path",
+			regex:          "^/admin/.*",
+			urlPath:        "/admin/dashboard",
+			xOriginalURI:   "",
+			subRequestMode: false,
+			want:           true,
+		},
+		{
+			name:           "subrequest mode honors X-Original-URI",
+			regex:          "^/admin/.*",
+			urlPath:        "/auth",
+			xOriginalURI:   "/admin/secret",
+			subRequestMode: true,
+			want:           true,
+		},
+		{
+			name:           "subrequest mode falls back to URL.Path when X-Original-URI does not match",
+			regex:          "^/admin/.*",
+			urlPath:        "/admin/dashboard",
+			xOriginalURI:   "/public/index",
+			subRequestMode: true,
+			want:           true,
+		},
+		{
+			name:           "subrequest mode with empty X-Original-URI uses URL.Path",
+			regex:          "^/admin/.*",
+			urlPath:        "/admin/dashboard",
+			xOriginalURI:   "",
+			subRequestMode: true,
+			want:           true,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			pc, err := NewPathChecker(tt.regex, tt.subRequestMode)
+			if err != nil {
+				t.Fatalf("NewPathChecker(%q, %v) returned error: %v", tt.regex, tt.subRequestMode, err)
+			}
+
+			req, err := http.NewRequest(http.MethodGet, "http://example.com"+tt.urlPath, nil)
+			if err != nil {
+				t.Fatalf("http.NewRequest: %v", err)
+			}
+
+			if tt.xOriginalURI != "" {
+				req.Header.Set("X-Original-URI", tt.xOriginalURI)
+			}
+
+			got, err := pc.Check(req)
+			if err != nil {
+				t.Fatalf("Check() unexpected error: %v", err)
+			}
+
+			if got != tt.want {
+				t.Errorf("Check() = %v, want %v (subRequestMode=%v, urlPath=%q, X-Original-URI=%q)",
+					got, tt.want, tt.subRequestMode, tt.urlPath, tt.xOriginalURI)
+			}
+		})
+	}
+}
+
+func TestPathChecker_XForwardedUri(t *testing.T) {
+	tests := []struct {
+		name           string
+		regex          string
+		xForwardedUri  string
+		xOriginalURI   string
+		urlPath        string
+		subRequestMode bool
+		want           bool
+	}{
+		{
+			name:           "X-Forwarded-Uri matches regex in subrequest mode",
+			regex:          "^/admin/.*",
+			xForwardedUri:  "/admin/users",
+			urlPath:        "/.within.website/x/cmd/anubis/api/check",
+			subRequestMode: true,
+			want:           true,
+		},
+		{
+			name:           "X-Forwarded-Uri with query string",
+			regex:          "^/admin/.*",
+			xForwardedUri:  "/admin/users?page=1",
+			urlPath:        "/.within.website/x/cmd/anubis/api/check",
+			subRequestMode: true,
+			want:           true,
+		},
+		{
+			name:           "X-Original-URI takes priority over X-Forwarded-Uri",
+			regex:          "^/admin/.*",
+			xForwardedUri:  "/public/page",
+			xOriginalURI:   "/admin/users",
+			urlPath:        "/.within.website/x/cmd/anubis/api/check",
+			subRequestMode: true,
+			want:           true,
+		},
+		{
+			name:           "falls back to X-Forwarded-Uri when no X-Original-URI",
+			regex:          "^/admin/.*",
+			xForwardedUri:  "/admin/dashboard",
+			urlPath:        "/.within.website/x/cmd/anubis/api/check",
+			subRequestMode: true,
+			want:           true,
+		},
+		{
+			name:           "neither header matches, url path matches",
+			regex:          "^/public/.*",
+			xForwardedUri:  "/admin/users",
+			urlPath:        "/public/page",
+			subRequestMode: true,
+			want:           true,
+		},
+		{
+			name:           "nothing matches",
+			regex:          "^/admin/.*",
+			xForwardedUri:  "/public/page",
+			urlPath:        "/.within.website/x/cmd/anubis/api/check",
+			subRequestMode: true,
+			want:           false,
+		},
+		{
+			name:           "non-subrequest mode ignores X-Forwarded-Uri",
+			regex:          "^/admin/.*",
+			xForwardedUri:  "/admin/users",
+			urlPath:        "/public/page",
+			subRequestMode: false,
+			want:           false,
+		},
+		{
+			name:           "non-subrequest mode uses url path",
+			regex:          "^/admin/.*",
+			xForwardedUri:  "/public/page",
+			urlPath:        "/admin/secret",
+			subRequestMode: false,
+			want:           true,
+		},
+		{
+			name:           "empty X-Forwarded-Uri falls back to url path",
+			regex:          "^/check$",
+			urlPath:        "/check",
+			subRequestMode: true,
+			want:           true,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			pc, err := NewPathChecker(tt.regex, tt.subRequestMode)
+			if err != nil {
+				t.Fatalf("NewPathChecker(%q, %v) returned error: %v", tt.regex, tt.subRequestMode, err)
+			}
+
+			req, err := http.NewRequest(http.MethodGet, "http://example.com"+tt.urlPath, nil)
+			if err != nil {
+				t.Fatalf("http.NewRequest: %v", err)
+			}
+
+			if tt.xForwardedUri != "" {
+				req.Header.Set("X-Forwarded-Uri", tt.xForwardedUri)
+			}
+			if tt.xOriginalURI != "" {
+				req.Header.Set("X-Original-URI", tt.xOriginalURI)
+			}
+
+			got, err := pc.Check(req)
+			if err != nil {
+				t.Fatalf("Check() unexpected error: %v", err)
+			}
+
+			if got != tt.want {
+				t.Errorf("Check() = %v, want %v (subRequestMode=%v, urlPath=%q, X-Forwarded-Uri=%q, X-Original-URI=%q)",
+					got, tt.want, tt.subRequestMode, tt.urlPath, tt.xForwardedUri, tt.xOriginalURI)
+			}
+		})
+	}
+}

lib/policy/expressions/environment.go

@@ -222,7 +222,16 @@ func New(opts ...cel.EnvOption) (*cel.Env, error) {
 						return types.ValOrErr(val, "value is not an integer, but is %T", val)
 					}
 
-					return types.Int(rand.IntN(int(n)))
+					if n <= 0 {
+						return types.NewErr("randInt bound must be positive, got %d", int64(n))
+					}
+
+					bound := int(n)
+					if types.Int(bound) != n {
+						return types.NewErr("randInt bound %d overflows platform int", int64(n))
+					}
+
+					return types.Int(rand.IntN(bound))
 				}),
 			),
 		),

lib/policy/expressions/environment_test.go

@@ -9,6 +9,7 @@ import (
 
 	"github.com/TecharoHQ/anubis/internal/dns"
 	"github.com/TecharoHQ/anubis/lib/store/memory"
+	"github.com/google/cel-go/cel"
 	"github.com/google/cel-go/common/types"
 	"github.com/google/cel-go/common/types/ref"
 )
@@ -688,6 +689,14 @@ func TestNewEnvironment(t *testing.T) {
 			description:   "should return values in correct range",
 			shouldCompile: true,
 		},
+		{
+			name:          "randInt-large-bound",
+			expression:    `randInt(2147483647) >= 0`,
+			variables:     map[string]any{},
+			expectBool:    boolPtr(true),
+			description:   "should accept int32-max bounds without overflow",
+			shouldCompile: true,
+		},
 		{
 			name:          "strings-extension-size",
 			expression:    `"hello".size() == 5`,
@@ -750,3 +759,65 @@ func TestNewEnvironment(t *testing.T) {
 func boolPtr(b bool) *bool {
 	return &b
 }
+
+func TestRandIntInvalidBounds(t *testing.T) {
+	env, err := New(cel.Variable("contentLength", cel.IntType))
+	if err != nil {
+		t.Fatalf("failed to create environment: %v", err)
+	}
+
+	tests := []struct {
+		name        string
+		expression  string
+		variables   map[string]any
+		wantErrText string
+		description string
+	}{
+		{
+			name:        "zero-bound-literal",
+			expression:  `randInt(0)`,
+			variables:   map[string]any{},
+			wantErrText: "randInt bound must be positive",
+			description: "randInt(0) should return a CEL error, not panic",
+		},
+		{
+			name:        "negative-bound-literal",
+			expression:  `randInt(-5)`,
+			variables:   map[string]any{},
+			wantErrText: "randInt bound must be positive",
+			description: "randInt(-5) should return a CEL error, not panic",
+		},
+		{
+			name:        "zero-bound-from-variable",
+			expression:  `randInt(contentLength)`,
+			variables:   map[string]any{"contentLength": 0},
+			wantErrText: "randInt bound must be positive",
+			description: "attacker-controlled zero contentLength should error gracefully",
+		},
+		{
+			name:        "negative-bound-from-variable",
+			expression:  `randInt(contentLength)`,
+			variables:   map[string]any{"contentLength": -1},
+			wantErrText: "randInt bound must be positive",
+			description: "attacker-controlled negative contentLength should error gracefully",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			prog, err := Compile(env, tt.expression)
+			if err != nil {
+				t.Fatalf("failed to compile expression %q: %v", tt.expression, err)
+			}
+
+			result, _, err := prog.Eval(tt.variables)
+			if err == nil {
+				t.Fatalf("%s: expected an evaluation error, got result %v", tt.description, result)
+			}
+
+			if !strings.Contains(err.Error(), tt.wantErrText) {
+				t.Errorf("%s: expected error containing %q, got %q", tt.description, tt.wantErrText, err.Error())
+			}
+		})
+	}
+}

lib/policy/expressions/loadavg.go

@@ -46,7 +46,7 @@ var (
 )
 
 func init() {
-	globalLoadAvg = &loadAvg{}
+	globalLoadAvg = &loadAvg{data: &load.AvgStat{}}
 	go globalLoadAvg.updateThread(context.Background())
 }
 

lib/policy/policy.go

@@ -60,7 +60,7 @@ func newParsedConfig(orig *config.Config) *ParsedConfig {
 	}
 }
 
-func ParseConfig(ctx context.Context, fin io.Reader, fname string, defaultDifficulty int, logLevel string) (*ParsedConfig, error) {
+func ParseConfig(ctx context.Context, fin io.Reader, fname string, defaultDifficulty int, logLevel string, subrequestMode bool) (*ParsedConfig, error) {
 	c, err := config.Load(fin, fname)
 	if err != nil {
 		return nil, err
@@ -152,7 +152,7 @@ func ParseConfig(ctx context.Context, fin io.Reader, fname string, defaultDiffic
 		}
 
 		if b.PathRegex != nil {
-			c, err := NewPathChecker(*b.PathRegex)
+			c, err := NewPathChecker(*b.PathRegex, subrequestMode)
 			if err != nil {
 				validationErrs = append(validationErrs, fmt.Errorf("while processing rule %s path regex: %w", b.Name, err))
 			} else {
@@ -170,7 +170,7 @@ func ParseConfig(ctx context.Context, fin io.Reader, fname string, defaultDiffic
 		}
 
 		if b.Expression != nil {
-			c, err := NewCELChecker(b.Expression, result.Dns)
+			c, err := NewCELChecker(b.Expression, result.Dns, subrequestMode)
 			if err != nil {
 				validationErrs = append(validationErrs, fmt.Errorf("while processing rule %s expressions: %w", b.Name, err))
 			} else {

lib/policy/policy_test.go

@@ -1,6 +1,8 @@
 package policy
 
 import (
+	"net/http"
+	"net/http/httptest"
 	"os"
 	"path/filepath"
 	"testing"
@@ -19,7 +21,7 @@ func TestDefaultPolicyMustParse(t *testing.T) {
 	}
 	defer fin.Close()
 
-	if _, err := ParseConfig(ctx, fin, "botPolicies.yaml", anubis.DefaultDifficulty, "info"); err != nil {
+	if _, err := ParseConfig(ctx, fin, "botPolicies.yaml", anubis.DefaultDifficulty, "info", false); err != nil {
 		t.Fatalf("can't parse config: %v", err)
 	}
 }
@@ -41,7 +43,7 @@ func TestGoodConfigs(t *testing.T) {
 				defer fin.Close()
 
 				ctx := thothmock.WithMockThoth(t)
-				if _, err := ParseConfig(ctx, fin, fin.Name(), anubis.DefaultDifficulty, "info"); err != nil {
+				if _, err := ParseConfig(ctx, fin, fin.Name(), anubis.DefaultDifficulty, "info", false); err != nil {
 					t.Fatal(err)
 				}
 			})
@@ -53,7 +55,7 @@ func TestGoodConfigs(t *testing.T) {
 				}
 				defer fin.Close()
 
-				if _, err := ParseConfig(t.Context(), fin, fin.Name(), anubis.DefaultDifficulty, "info"); err != nil {
+				if _, err := ParseConfig(t.Context(), fin, fin.Name(), anubis.DefaultDifficulty, "info", false); err != nil {
 					t.Fatal(err)
 				}
 			})
@@ -77,7 +79,7 @@ func TestBadConfigs(t *testing.T) {
 			}
 			defer fin.Close()
 
-			if _, err := ParseConfig(ctx, fin, fin.Name(), anubis.DefaultDifficulty, "info"); err == nil {
+			if _, err := ParseConfig(ctx, fin, fin.Name(), anubis.DefaultDifficulty, "info", false); err == nil {
 				t.Fatal(err)
 			} else {
 				t.Log(err)
@@ -85,3 +87,27 @@ func TestBadConfigs(t *testing.T) {
 		})
 	}
 }
+
+func TestPathCheckerStripsForwardedURIQuery(t *testing.T) {
+	checker, err := NewPathChecker("^/admin$", true)
+	if err != nil {
+		t.Fatal(err)
+	}
+	req := httptest.NewRequest(http.MethodGet, "https://anubis.local/.within.website/x/cmd/anubis/api/check", nil)
+	req.Header.Set("X-Forwarded-Uri", "/admin?x=1")
+	matched, err := checker.Check(req)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if !matched {
+		t.Fatalf("expected exact path checker to match forwarded URI when query string is appended")
+	}
+	req.Header.Set("X-Forwarded-Uri", "/admin")
+	matched, err = checker.Check(req)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if !matched {
+		t.Fatalf("expected exact path checker to match forwarded URI without query string")
+	}
+}

package.json

@@ -20,11 +20,11 @@
   "author": "",
   "license": "ISC",
   "devDependencies": {
-    "@commitlint/cli": "^20.5.0",
-    "@commitlint/config-conventional": "^20.5.0",
-    "baseline-browser-mapping": "^2.10.15",
-    "cssnano": "^7.1.4",
-    "cssnano-preset-advanced": "^7.0.12",
+    "@commitlint/cli": "^20.5.3",
+    "@commitlint/config-conventional": "^20.5.3",
+    "baseline-browser-mapping": "^2.10.27",
+    "cssnano": "^7.1.8",
+    "cssnano-preset-advanced": "^7.0.16",
     "esbuild": "^0.28.0",
     "husky": "^9.1.7",
     "playwright": "^1.52.0",
@@ -32,7 +32,7 @@
     "postcss-import": "^16.1.1",
     "postcss-import-url": "^7.2.0",
     "postcss-url": "^10.1.3",
-    "prettier": "^3.8.1"
+    "prettier": "^3.8.3"
   },
   "dependencies": {
     "@aws-crypto/sha256-js": "^5.2.0",

test/traefik/anubis.yaml

@@ -0,0 +1,16 @@
+bots:
+  - name: block-admin-via-regex
+    path_regex: ^/admin(/.*)?$
+    action: DENY
+
+  - name: block-secret-via-cel
+    expression:
+      all:
+        - 'path.startsWith("/api/secret")'
+    action: DENY
+
+  - import: (data)/meta/default-config.yaml
+
+status_codes:
+  CHALLENGE: 200
+  DENY: 403

test/traefik/docker-compose.yaml

@@ -0,0 +1,27 @@
+services:
+  traefik:
+    image: traefik:v3.3
+    restart: always
+    ports:
+      - 8080:80
+    volumes:
+      - ./traefik.yml:/etc/traefik/traefik.yml:ro
+      - ./http.yaml:/config/http.yaml:ro
+
+  anubis:
+    image: ko.local/anubis
+    restart: always
+    environment:
+      BIND: ":8080"
+      TARGET: " "
+      POLICY_FNAME: /etc/techaro/anubis.yaml
+      PUBLIC_URL: http://localhost:8080/.within.website/x/cmd/anubis
+      COOKIE_DOMAIN: localhost
+      USE_REMOTE_ADDRESS: "true"
+    volumes:
+      - ./anubis.yaml:/etc/techaro/anubis.yaml
+
+  backend:
+    image: ghcr.io/xe/x/httpdebug
+    pull_policy: always
+    restart: always

test/traefik/http.yaml

@@ -0,0 +1,30 @@
+http:
+  middlewares:
+    anubis:
+      forwardAuth:
+        address: http://anubis:8080/.within.website/x/cmd/anubis/api/check
+        trustForwardHeader: true
+
+  routers:
+    anubis-assets:
+      rule: Host(`localhost`) && PathPrefix(`/.within.website/x/cmd/anubis`)
+      entryPoints:
+        - web
+      service: anubis
+    backend:
+      rule: Host(`localhost`)
+      entryPoints:
+        - web
+      service: backend
+      middlewares:
+        - anubis
+
+  services:
+    anubis:
+      loadBalancer:
+        servers:
+          - url: http://anubis:8080
+    backend:
+      loadBalancer:
+        servers:
+          - url: http://backend:3000

test/traefik/test.mjs

@@ -0,0 +1,33 @@
+// Smoke test for https://github.com/TecharoHQ/anubis/issues/1628
+//
+// Traefik's forwardAuth middleware calls Anubis at the literal path
+// /.within.website/x/cmd/anubis/api/check and conveys the original URL in the
+// X-Forwarded-Uri header. Path-targeting policy rules must match that header
+// (not r.URL.Path), otherwise every request looks like a request to /check.
+
+const BASE = "http://localhost:8080";
+const UA = "Mozilla/5.0 (compatible; AnubisTraefikSmoke/1.0)";
+
+const cases = [
+  { path: "/", expected: 307, why: "control: no DENY rule, default challenge redirect" },
+  { path: "/free", expected: 307, why: "control: no DENY rule, default challenge redirect" },
+  { path: "/admin", expected: 403, why: "path_regex must match X-Forwarded-Uri, not 307 or 200" },
+  { path: "/admin/users", expected: 403, why: "path_regex must match X-Forwarded-Uri, not 307 or 200" },
+  { path: "/api/secret", expected: 403, why: "CEL path must match X-Forwarded-Uri, not 307 or 200" },
+];
+
+let failed = false;
+
+for (const c of cases) {
+  const resp = await fetch(`${BASE}${c.path}`, {
+    headers: { "User-Agent": UA },
+    redirect: "manual",
+  });
+  const ok = resp.status === c.expected;
+  console.log(
+    `${ok ? "PASS" : "FAIL"}: GET ${c.path} → ${resp.status} (want ${c.expected}: ${c.why})`,
+  );
+  if (!ok) failed = true;
+}
+
+process.exit(failed ? 1 : 0);

test/traefik/test.sh

@@ -0,0 +1,22 @@
+#!/usr/bin/env bash
+
+set -eo pipefail
+
+export VERSION=${GITHUB_SHA:-devel}-test
+export KO_DOCKER_REPO=ko.local
+
+set -u
+
+source ../lib/lib.sh
+
+build_anubis_ko
+
+function cleanup() {
+	docker compose down -t 1 || :
+}
+
+trap cleanup EXIT SIGINT
+
+docker compose up -d
+
+backoff-retry --try-count 20 node ./test.mjs

test/traefik/traefik.yml

@@ -0,0 +1,8 @@
+entryPoints:
+  web:
+    address: ":80"
+
+providers:
+  file:
+    directory: /config
+    watch: false

test/traefik/var/.gitignore

@@ -0,0 +1,2 @@
+*
+!.gitignore