CVE-2026-88009
8.2 ÉlevéeDescription
Traefik is an open source HTTP reverse proxy and load balancer. Prior to 2.11.57, and 3.7.13, Traefik accepts a rootless HTTP/1 request target that Go stores in URL.Opaque while leaving URL.Path empty. The rewriteRequestBuilder path evaluates routing, path sanitization, forwardAuth, encodedCharacters, and access logging against a path normalized to / but forwards URL.Opaque verbatim to the backend, allowing cross-vhost routing bypass, path-scoped authorization bypass, and access-log evasion when the backend interprets the opaque target as a path. This issue is fixed in 2.11.57 and 3.7.13.
Produits concernés
Scores CVSS
| Version | Score | Source | Vecteur |
|---|---|---|---|
| 4.0 | 8.8 Élevée | security-advisories@github.com | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/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 |
| 3.1 | 8.2 Élevée | nvd@nist.gov (NVD) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N |
Faiblesses (CWE)
Références
- https://github.com/traefik/traefik/commit/58d1e9ca204526823211e30fd4634101c59d58e9 Patch
- https://github.com/traefik/traefik/pull/13796 Issue TrackingPatch
- https://github.com/traefik/traefik/releases/tag/v2.11.57 Release Notes
- https://github.com/traefik/traefik/releases/tag/v3.7.13 Release Notes
- https://github.com/traefik/traefik/security/advisories/GHSA-f52w-8j3h-j724 PatchVendor Advisory