CVE-2026-65600
CVE-2026-65600 · Traefik before v2.11.52 Authentication Bypass via ReplacePathRegex
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Traefik versions <= v2.11.51, >= v3.6.0 <= v3.6.22, and >= v3.7.0 <= v3.7.6 contain an authentication bypass via path traversal in the ReplacePathRegex middleware. When ReplacePathRegex is configured with a regex that captures user-controlled path segments without a mandatory path separator (e.g. regex "^/api(.*)", replacement "/$1"), the middleware forwards the replaced path to the backend without validating that it matches its normalized form. An unauthenticated remote attacker can send a crafted request (e.g. GET /api../admin) that produces an un-normalized path such as /../admin, which a backend that normalizes paths resolves to a protected route, bypassing authentication middleware. Fixed in v2.11.52, v3.6.23, and v3.7.7.
CVSS 7.8 · Élevée · EPSS 0,6% · Correctif disponible
- Publication
- Mise à jour
Pile logicielle: web
Produits et versions concernés
traefik
- Versions du logiciel
- ≥ 0, < 2.11.52: Concernée (semver)
- 2.11.52: Non concernée (semver)
Mettez à jour vers 2.11.52
traefik
- Versions du logiciel
- ≥ 3.6.0, < 3.6.23: Concernée (semver)
- 3.6.23: Non concernée (semver)
Mettez à jour vers 3.6.23
traefik
- Versions du logiciel
- ≥ 3.7.0, < 3.7.7: Concernée (semver)
- 3.7.7: Non concernée (semver)
Mettez à jour vers 3.7.7