CVE search · CVE-2026-114635

CVE-2026-114635

high 7.0

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.

Open in the NVD CVE.org JSON

Status: Analyzed
Published: 2026-10-22
Last changed: 2026-11-04
Source: disclosure@vulncheck.com
Weakness: CWE-288

Severity

Version	Score	Vector	Source
CVSS 4.0	high 7.0	`CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X`	disclosure@vulncheck.comSecondary
CVSS 3.1	high 8.7	`CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N`	disclosure@vulncheck.comSecondary

Affected products

Vendor and product from the NVD’s CPE applicability statements. Versions and conditions are on the NVD’s page.

traefik · traefik

References

https://github.com/traefik/traefik/security/advisories/GHSA-fh26-gfpp-7xxxVendor Advisory
https://www.vulncheck.com/advisories/traefik-before-2.11.58-and-3.7.14-sni-check-bypass-via-http-2-schemeThird Party Advisory

CVE-2026-114635

Details

Severity

Affected products

References