CVE-2026-114635
Traefik before v2.11.58 and v3.7.14 SNI Check Bypass via HTTP/2 Scheme
CVSS Score
8.7
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-288 |
| Vendor | traefik |
| Product | traefik |
| Published | Oct 22, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
None
Affected Versions
traefik / traefik
0 < 2.11.58
traefik / traefik
3.0.0 < 3.7.14
References
Credits
🔍 dlorenc