CVE-2026-32305
EPSS 0.01%Traefik has a Potential mTLS Bypass via Fragmented TLS ClientHello Causing Pre-SNI Sniff Fallback to Default Non-mTLS TLS Config in github.com/traefik/traefik
Published: 3/20/2026Modified: 4/16/2026
Description
Traefik has a Potential mTLS Bypass via Fragmented TLS ClientHello Causing Pre-SNI Sniff Fallback to Default Non-mTLS TLS Config in github.com/traefik/traefik
Affected packages (6)
- Go/github.com/traefik/traefikfrom 0, <= 1.7.34
- Go/github.com/traefik/traefikfrom 0
- Go/github.com/traefik/traefik/v2from 0, < 2.11.41
- Go/github.com/traefik/traefik/v2from 0, < 2.11.41
- Go/github.com/traefik/traefik/v3>= 3.7.0-ea.1, < 3.7.0-ea.2
- Go/github.com/traefik/traefik/v3from 0, < 3.6.11, >= 3.7.0-ea.1, < 3.7.0-ea.2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N |
References (6)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2026-32305
- PATCHhttps://github.com/traefik/traefik
- WEBhttps://github.com/traefik/traefik/releases/tag/v2.11.41
- WEBhttps://github.com/traefik/traefik/releases/tag/v3.6.11
- WEBhttps://github.com/traefik/traefik/releases/tag/v3.7.0-ea.2
- WEBhttps://github.com/traefik/traefik/security/advisories/GHSA-wvvq-wgcr-9q48