CVE-2026-25949: fallo de gravedad alta en traefik
Traefik: TCP readTimeout bypass via STARTTLS on Postgres
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
21Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 7.5epss 0.8%
Traefik is an HTTP reverse proxy and load balancer. Prior to 3.6.8, there is a potential vulnerability in Traefik managing STARTTLS requests. An unauthenticated client can bypass Traefik entrypoint respondingTimeouts.readTimeout by sending the 8-byte Postgres SSLRequest (STARTTLS) prelude and then stalling, causing connections to remain open indefinitely, leading to a denial of service. This vulnerability is fixed in 3.6.8.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Productos afectados
traefik · traefikCVEs relacionadas — traefik
En el mismo producto, de las más peligrosas a las menos.
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Referencias
https://access.redhat.com/errata/RHSA-2026:6192https://access.redhat.com/security/cve/CVE-2026-25949https://bugzilla.redhat.com/show_bug.cgi?id=2439522https://github.com/traefik/traefik/commit/31e566e9f1d7888ccb6fbc18bfed427203c35678https://github.com/traefik/traefik/releases/tag/v3.6.8https://github.com/traefik/traefik/security/advisories/GHSA-89p3-4642-cr2whttps://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-25949.json