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CVE-2026-22045

MEDIUM

5.9

Descricao

Traefik is an HTTP reverse proxy and load balancer. Prior to 2.11.35 and 3.6.7, there is a potential vulnerability in Traefik ACME TLS certificates' automatic generation: the ACME TLS-ALPN fast path can allow unauthenticated clients to tie up go routines and file descriptors indefinitely when the ACME TLS challenge is enabled. A malicious client can open many connections, send a minimal ClientHello with acme-tls/1, then stop responding, leading to denial of service of the entry point. The vulnerability is fixed in 2.11.35 and 3.6.7.

Detalhes CVE

Pontuacao CVSS v3.15.9

SeveridadeMEDIUM

Vetor CVSSCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Vetor de ataqueNETWORK

ComplexidadeHIGH

Privilegios necessariosNONE

Interacao do usuarioNONE

Publicado1/15/2026

Ultima modificacao1/23/2026

Fontenvd

Avistamentos honeypot0

Produtos afetados

traefik:traefik

Fraquezas (CWE)

CWE-770

Referencias

https://github.com/traefik/traefik/commit/e9f3089e9045812bcf1b410a9d40568917b26c3d(security-advisories@github.com)

https://github.com/traefik/traefik/releases/tag/v2.11.35(security-advisories@github.com)

https://github.com/traefik/traefik/releases/tag/v3.6.7(security-advisories@github.com)

https://github.com/traefik/traefik/security/advisories/GHSA-cwjm-3f7h-9hwq(security-advisories@github.com)

Correlacoes IOC

Sem correlacoes registradas

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