CVE-2026-114635
Published:October 22, 2026
Updated:October 22, 2026
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 Packages
https://github.com/traefik/traefik.git (GITHUB):
Affected version(s) >=v3.0.0-beta1 <v3.7.14Fix Suggestion:
Update to version v3.7.14https://github.com/traefik/traefik.git (GITHUB):
Affected version(s) >=v2.2.6 <v2.11.58Fix Suggestion:
Update to version v2.11.58github.com/traefik/traefik/v2 (GO):
Affected version(s) >=v2.2.6 <v2.11.58Fix Suggestion:
Update to version v2.11.58github.com/traefik/traefik/v3 (GO):
Affected version(s) >=v3.0.0-beta1 <v3.7.14Fix Suggestion:
Update to version v3.7.14Related Resources (3)
Do you need more information?
Contact UsCVSS v4
Base Score:
7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
HIGH
Subsequent System Integrity
HIGH
Subsequent System Availability
NONE
CVSS v3
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
Weakness Type (CWE)
Authentication Bypass Using an Alternate Path or Channel
EPSS
Base Score:
0.20