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.
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Affected Vendors & Products
References
History
Thu, 22 Oct 2026 02:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | Traefik before v2.11.58 and v3.7.14 SNI Check Bypass via HTTP/2 Scheme | |
| First Time appeared |
Traefik
Traefik traefik |
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| Weaknesses | CWE-288 | |
| CPEs | cpe:2.3:a:traefik:traefik:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Traefik
Traefik traefik |
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| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: VulnCheck
Published: 2026-10-22T01:43:36.508Z
Updated: 2026-10-22T01:43:36.508Z
Reserved: 2026-10-21T21:57:36.197Z
Link: CVE-2026-114635
No data.
Status : Analyzed
Published: 2026-10-22T02:16:56.140
Modified: 2026-10-27T14:17:41.240
Link: CVE-2026-114635
No data.
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