{"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":"2026-08-07T15:41:26.662Z"},"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"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-07T15:40:56.189049Z","id":"CVE-2026-71327","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-08-07T15:41:26.662Z"}}]}}