CVE-2026-114635GHSA-FH26-GFPP-7XXX
Traefik before v2.11.58 and v3.7.14 SNI Check Bypass via HTTP/2 Scheme
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 2.11.58, 3.7.14
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
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.
Timeline
- CVE published
- First seen by cve.now
Affected versions
- traefik traefik
fixed in 2.11.58
- traefik traefik
From 3.0.0 · fixed in 3.7.14