CVE-2026-71327
- Source
- https://cve.org/CVERecord?id=CVE-2026-71327
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-71327.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-71327
- Aliases
- Downstream
openSUSE (1)
SUSE (1)
- Related
- Published
- 2026-08-06T16:38:11Z
- Modified
- 2026-10-28T02:31:03Z
- Severity
-
- 7.6 (High) CVSS_V4 - 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 CVSS Calculator
- Summary
- Traefik: Gateway API route identity collision allows cross-namespace backend hijacking
- Details
-
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.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-694" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/71xxx/CVE-2026-71327.json" }- References
-
- https://github.com/traefik/traefik/releases/tag/v3.6.25
- https://github.com/traefik/traefik/releases/tag/v3.7.10
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/71xxx/CVE-2026-71327.json
- https://github.com/traefik/traefik/security/advisories/GHSA-fgjj-px3w-67xx
- https://nvd.nist.gov/vuln/detail/CVE-2026-71327
- https://github.com/traefik/traefik/commit/a764166656f0cd337f917ac76315c381cca844f9
- https://github.com/traefik/traefik/pull/13580
Affected packages
Git / github.com/traefik/traefik
Affected ranges
- Type
- GIT
- Repo
- https://github.com/traefik/traefik
- Events
- Database specific
-
Show details
{ "extracted_events": [ { "cpe": "cpe:2.3:a:traefik:traefik:*:*:*:*:*:*:*:*", "range": [ { "introduced": "3.0.0" }, { "fixed": "3.6.25" } ], "source": "CPE_RANGE" }, { "cpe": "cpe:2.3:a:traefik:traefik:*:*:*:*:*:*:*:*", "range": [ { "introduced": "3.7.0" }, { "fixed": "3.7.10" } ], "source": "CPE_RANGE" }, { "range": [ { "fixed": "a764166656f0cd337f917ac76315c381cca844f9" } ], "source": "REFERENCES_COMMIT" }, { "original_tag": "v3.6.25", "range": [ { "fixed": "4b18b24b0b002dcc80e0640c6088a87d813de29a" } ], "source": "REFERENCES_TAG" }, { "original_tag": "v3.7.10", "range": [ { "fixed": "2a2349356c01b1b1f7ecddb0c17b30c97f5241e7" } ], "source": "REFERENCES_TAG" } ] }