🛡️ CVE-2019-20894 — traefik

🟠 CVSS 8.0 — High ✅ No Known Exploit OSV
8.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Improper Authentication

Traefik 2.x, in certain configurations, allows HTTPS sessions to proceed without mutual TLS verification in a situation where ERR_BAD_SSL_CLIENT_AUTH_CERT should have occurred.

Affected software

CVE-2019-20894 is recorded against 3 packages.

  • github.com/containous/traefik
  • github.com/containous/traefik/v2
  • github.com/traefik/traefik/v2

Timeline and source

Published on 21 August 2024 and last revised on 3 March 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from OSV.

References

github.com (Advisory)
nvd.nist.gov (Advisory)
github.com (Fix)
github.com (Fix)
github.com (Report)

Details

Severity High
CVSS Score 8.0
CVSS Vector N/A
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2024-08-21
Updated 2026-08-12
Modified 2026-03-03

Affected Packages

Software From version Fixed in
github.com/containous/traefik
github.com/containous/traefik/v2
github.com/traefik/traefik/v2

Similar Threats

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