Description

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.

INFO

Published Date :

2026-01-15T22:44:05.423Z

Last Modified :

2026-01-20T16:29:37.648Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-22045 vulnerability.

Vendors Products
Traefik
  • Traefik
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-22045.

URL Resource
https://github.com/traefik/traefik/commit/e9f3089e9045812bcf1b410a9d40568917b26c3d cve-icon cve-icon cve-icon
https://github.com/traefik/traefik/releases/tag/v2.11.35 cve-icon cve-icon cve-icon
https://github.com/traefik/traefik/releases/tag/v3.6.7 cve-icon cve-icon cve-icon
https://github.com/traefik/traefik/security/advisories/GHSA-cwjm-3f7h-9hwq cve-icon cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2026-22045 cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-22045 cve-icon
Login to claim this CVE

CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact