Vulnerability Database

320,453

Total vulnerabilities in the database

CVE-2026-22045

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.

  • Published: Jan 15, 2026
  • Updated: Jan 17, 2026
  • CVE: CVE-2026-22045
  • Severity: Medium
  • Exploit:

CVSS v3:

  • Severity: Medium
  • Score: 5.9
  • AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

CWEs:

Software From Fixed in
traefik / traefik - 2.11.35
traefik / traefik 3.0.0 3.6.7