high
CVE-2026-85597
Traefik mTLS bypass - conflicting TLS options on routers sharing a hostname fall back to the default TLS config, dropping client-certificate authentication for every host in the rule (CVSS 8.2)
- Severity
- high
- Affected product
- Traefik
- Affected versions
- Traefik ≥ 2.0.0, < 2.11.55
- Affected versions
- Traefik ≥ 3.0.0, < 3.7.11
- Fixed in
- Traefik 2.11.55
- Fixed in
- Traefik 3.7.11
- Detection basis
- Appliance fingerprint
- Shipped rule
- Traefik: Traefik mTLS bypass - conflicting TLS options on routers sharing a hostname fall back to the default TLS config, dropping client-certificate authentication for every host in the rule (CVSS 8.2)
- Added to NewScan
- 2026-09-04
- Detected by
- NewScan — free, self-hosted
How NewScan reports it
APPLIANCE FINGERPRINT
NewScan fingerprints the Traefik appliance and reports this CVE when the detected version falls inside the affected range below.
APPLIANCE FINGERPRINT
NewScan fingerprints the Traefik appliance and reports this CVE when the detected version falls inside the affected range below.
References
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