8.2Alta

CVE-2026-85597Traefik before v2.11.55 and v3.0.0 through v3.7.10 mTLS Bypass via TLS Option Conflict

traefik traefik Publicada: (hace 2 meses)

Descripción

Traefik before v2.11.55 and v3.0.0 through v3.7.10 contain a TLS option conflict resolution vulnerability that allows unauthenticated attackers to bypass client-certificate authentication by creating conflicting TLS options on multi-host routers. Attackers can reach protected backends by exploiting shared TLS resolution across multiple hostnames in a single router rule, causing the strict mTLS requirement to fall back to default options for all hosts.

Debilidad (CWE): CWE-863

Datos: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Se publican tal como los indican las fuentes, en inglés.

Productos y versiones afectados

FabricanteProductoVersiones
traefik traefik < 2.11.55, fixed 2.11.55

Referencias y parches

Coincidencias CPE (NVD) (2)

  • cpe:2.3:a:traefik:traefik:*:*:*:*:*:*:*:* < 2.11.55
  • cpe:2.3:a:traefik:traefik:*:*:*:*:*:*:*:* ≥ 3.0.0 < 3.7.11