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CVE-2026-114635

CVE-2026-114635 · Traefik before v2.11.58 and v3.7.14 SNI Check Bypass via HTTP/2 Scheme

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 7.0 · High · EPSS 0.2% · Fix available

Published
Updated

Stack: web

Affected products and versions

  • traefik

    Versions
    • ≥ 0, < 2.11.58: Affected (semver)
    • 2.11.58: Not affected (semver)

    Update to 2.11.58

  • traefik

    Versions
    • ≥ 3.0.0, < 3.7.14: Affected (semver)
    • 3.7.14: Not affected (semver)

    Update to 3.7.14

Original sources

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