RCE in Traefik
CVE-2026-32305
Traefik is an HTTP reverse proxy and load balancer. Versions 2.11.40 and below, 3.0.0-beta1 through 3.6.11, and 3.7.0-ea.1 are vulnerable to mTLS bypass through the TLS SNI pre-sniffing logic related to fragmented ClientHello packets. When…
Vulnerability class: Broken Authentication
EPSS: 0.000 (3.4th percentile) — read the EPSS interpretation.
Affected products
- Traefik — versions < 2.11.41, >= 3.0.0-beta1, < 3.6.11, >= 3.7.0-ea.1, < 3.7.0-ea.2
Weakness classification (CWE)
References
- https://github.com/traefik/traefik/security/advisories/GHSA-wvvq-wgcr-9q48 (x_refsource_CONFIRM)
- https://github.com/traefik/traefik/releases/tag/v2.11.41 (x_refsource_MISC)
- https://github.com/traefik/traefik/releases/tag/v3.6.11 (x_refsource_MISC)
- https://github.com/traefik/traefik/releases/tag/v3.7.0-ea.2 (x_refsource_MISC)