{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-71327", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-08-05T18:14:42.065Z", "datePublished": "2026-08-06T16:38:11.600Z", "dateUpdated": "2026-08-06T16:38:11.600Z"}, "containers": {"cna": {"title": "Traefik: Gateway API route identity collision allows cross-namespace backend hijacking", "problemTypes": [{"descriptions": [{"cweId": "CWE-694", "lang": "en", "description": "CWE-694: Use of Multiple Resources with Duplicate Identifier", "type": "CWE"}]}], "metrics": [{"cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 7.6, "baseSeverity": "HIGH", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N", "version": "4.0"}}], "references": [{"name": "https://github.com/traefik/traefik/security/advisories/GHSA-fgjj-px3w-67xx", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/traefik/traefik/security/advisories/GHSA-fgjj-px3w-67xx"}, {"name": "https://github.com/traefik/traefik/pull/13580", "tags": ["x_refsource_MISC"], "url": "https://github.com/traefik/traefik/pull/13580"}, {"name": "https://github.com/traefik/traefik/commit/a764166656f0cd337f917ac76315c381cca844f9", "tags": ["x_refsource_MISC"], "url": "https://github.com/traefik/traefik/commit/a764166656f0cd337f917ac76315c381cca844f9"}, {"name": "https://github.com/traefik/traefik/releases/tag/v3.6.25", "tags": ["x_refsource_MISC"], "url": "https://github.com/traefik/traefik/releases/tag/v3.6.25"}, {"name": "https://github.com/traefik/traefik/releases/tag/v3.7.10", "tags": ["x_refsource_MISC"], "url": "https://github.com/traefik/traefik/releases/tag/v3.7.10"}], "affected": [{"vendor": "traefik", "product": "traefik", "versions": [{"version": ">= 3.0.0, < 3.6.25", "status": "affected"}, {"version": ">= 3.7.0, < 3.7.10", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-08-06T16:38:11.600Z"}, "descriptions": [{"lang": "en", "value": "Traefik is an open source HTTP reverse proxy and load balancer. From 3.0.0 until 3.6.25 and 3.7.10, Traefik's Kubernetes Gateway API provider in pkg/provider/kubernetes/gateway/httproute.go, grpcroute.go, tcproute.go, and tlsroute.go builds HTTPRoute, GRPCRoute, TCPRoute, and TLSRoute router and service identities by hyphen-concatenating namespace, route name, Gateway identity, entry point, and rule index, allowing colliding Routes to overwrite another namespace's backend. This issue is fixed in 3.6.25 and 3.7.10."}], "source": {"advisory": "GHSA-fgjj-px3w-67xx", "discovery": "UNKNOWN"}}}}

{}

{}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[3.0.0,3.6.25)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[3.7.0,3.7.10)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "traefik", "source": "cna", "vendor": "traefik"}, "product": "traefik", "vendor": "traefik"}], "created": "2026-08-07T01:15:05.057892+00:00", "updated": "2026-08-07T02:00:06.376062+00:00", "vendors": ["traefik", "traefik$PRODUCT$traefik"]}