Description (CNA)
Traefik versions 3.7.0 through 3.7.6 contain a namespace confusion vulnerability in the Kubernetes Gateway API provider. When resolving HTTPRoute.spec.rules[].backendRefs[].filters[].extensionRef, Traefik used the backend Service namespace instead of the HTTPRoute namespace. A low-privileged route author holding a ReferenceGrant for a cross-namespace Service could therefore bind a Traefik Middleware from the backend namespace without a separate grant for that middleware, potentially injecting trusted reverse-proxy identity headers into downstream requests. The issue is fixed in version 3.7.7.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| traefik / traefik | affected 3.7.0 before 3.7.7; unaffected 3.7.7 |
CWE
CWE-863
References
- https://github.com/traefik/traefik/security/advisories/GHSA-qq9q-x9w4-chhj
- https://github.com/traefik/traefik/commit/26c96a3935cafb473f4a5bae1886560d9aa4e4f0
- https://www.vulncheck.com/advisories/traefik-before-namespace-confusion-via-httproute-extensionref
ADP enrichment
No English description supplied.
No references supplied.