CVE-2026-114635

7.0 HIGH 0.2% exploit odds Fix listed Auth & access

What it is

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.

At a glance

Exploitability: Can be exploited over the network without logging in. Limited direct impact.
Exploit odds: 0.2% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2026-10-22 02:16 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-11-04 16:17 UTC Last updatedMost recent change to the record

Details

Published: 2026-10-22 02:16 UTC
Last modified: 2026-11-04 16:17 UTC
Exploit probability: 0.2% · EPSS, next 30 days
Weakness: CWE-288
Record status: Analyzed

Affected

Traefik < 2.11.58
Traefik < 3.7.14

Attack profile CVSS 4.0 · 7.0

Attack vector: Network
Complexity: Low
Attack requirements: Present
Privileges needed: None
User interaction: None
Confidentiality: None
Integrity: None
Availability: None

Raw vector

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

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Fix and advisories

https://github.com/traefik/traefik/security/advisories/GHSA-fh26-gfpp-7xxx

References

NVD record · CVE.org record