{"api_version":"1","generated_at":"2026-08-07T04:19:04+00:00","cve":"CVE-2026-71327","urls":{"html":"https://cve.report/CVE-2026-71327","api":"https://cve.report/api/cve/CVE-2026-71327.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-71327","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-71327"},"summary":{"title":"Traefik: Gateway API route identity collision allows cross-namespace backend hijacking","description":"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. 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This issue is fixed in 3.6.25 and 3.7.10."}],"metrics":[{"cvssV4_0":{"attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":7.6,"baseSeverity":"HIGH","privilegesRequired":"LOW","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","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","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-694","description":"CWE-694: Use of Multiple Resources with Duplicate Identifier","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-08-06T16:38:11.600Z","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M"},"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"}],"source":{"advisory":"GHSA-fgjj-px3w-67xx","discovery":"UNKNOWN"},"title":"Traefik: Gateway API route identity collision allows cross-namespace backend hijacking"}},"cveMetadata":{"assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","assignerShortName":"GitHub_M","cveId":"CVE-2026-71327","datePublished":"2026-08-06T16:38:11.600Z","dateReserved":"2026-08-05T18:14:42.065Z","dateUpdated":"2026-08-06T16:38:11.600Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-06 22:18:29","lastModifiedDate":"2026-08-06 22:18:29","problem_types":["CWE-694","CWE-694 CWE-694: Use of Multiple Resources with Duplicate Identifier"],"metrics":{"cvssMetricV40":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"4.0","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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","baseScore":7.6,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","confidentialityRequirement":"NOT_DEFINED","integrityRequirement":"NOT_DEFINED","availabilityRequirement":"NOT_DEFINED","modifiedAttackVector":"NOT_DEFINED","modifiedAttackComplexity":"NOT_DEFINED","modifiedAttackRequirements":"NOT_DEFINED","modifiedPrivilegesRequired":"NOT_DEFINED","modifiedUserInteraction":"NOT_DEFINED","modifiedVulnConfidentialityImpact":"NOT_DEFINED","modifiedVulnIntegrityImpact":"NOT_DEFINED","modifiedVulnAvailabilityImpact":"NOT_DEFINED","modifiedSubConfidentialityImpact":"NOT_DEFINED","modifiedSubIntegrityImpact":"NOT_DEFINED","modifiedSubAvailabilityImpact":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED"}}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"71327","Ordinal":"1","Title":"Traefik: Gateway API route identity collision allows cross-names","CVE":"CVE-2026-71327","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"71327","Ordinal":"1","NoteData":"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.","Type":"Description","Title":"Traefik: Gateway API route identity collision allows cross-names"}]}}}