High severity8.7NVD Advisory· Published Oct 22, 2026

CVE-2026-114635

Description

Traefik before v2.11.58 and v3.7.14 contains an authentication bypass vulnerability in its SNI check, which is skipped when request TLS state is nil. Unauthenticated clients can send HTTP/2 requests with the :scheme http pseudo-header over TLS on Go 1.27 builds to reach routers requiring client certificates without presenting one.

Affected products

Traefik/Traefikllm-fuzzy
Range: <2.11.58, <3.7.14

Patches

Vulnerability mechanics

References

github.com/traefik/traefik/security/advisories/GHSA-fh26-gfpp-7xxxnvd
www.vulncheck.com/advisories/traefik-before-2.11.58-and-3.7.14-sni-check-bypass-via-http-2-schemenvd

News mentions

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cvss	0.565
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000