Description
Traefik is an open source HTTP reverse proxy and load balancer. In affected versions there is a potential vulnerability in Traefik managing TLS connections. A router configured with a not well-formatted TLSOption is exposed with an empty TLSOption. For instance, a route secured using an mTLS connection set with a wrong CA file is exposed without verifying the client certificates. Users are advised to upgrade to version 2.9.6. Users unable to upgrade should check their logs to detect the error messages and fix your TLS options.
References (4)
Core 4
Core References
Mitigation, Patch, Third Party Advisory x_refsource_confirm
https://github.com/traefik/traefik/security/advisories/GHSA-468w-8x39-gj5v
Patch, Third Party Advisory x_refsource_misc
https://github.com/traefik/traefik/commit/7e3fe48b80083b41e9ff82a474a36484cabc701a
Product, Vendor Advisory x_refsource_misc
https://doc.traefik.io/traefik/v2.9/https/tls/#tls-options
Release Notes, Third Party Advisory x_refsource_misc
https://github.com/traefik/traefik/releases/tag/v2.9.6
Scores
CVSS v3
8.1
EPSS
0.0040
EPSS Percentile
60.9%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-295
Status
published
Products (2)
traefik/traefik
< 2.9.6
traefik/traefik
0 - 2.9.6Go
Published
Dec 08, 2022
Tracked Since
Feb 18, 2026