Description (CNA)
Traefik before v2.11.55 and v3.0.0 through v3.7.10 contain a TLS option conflict resolution vulnerability that allows unauthenticated attackers to bypass client-certificate authentication by creating conflicting TLS options on multi-host routers. Attackers can reach protected backends by exploiting shared TLS resolution across multiple hostnames in a single router rule, causing the strict mTLS requirement to fall back to default options for all hosts.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| traefik / traefik | affected 0 before 2.11.55; unaffected 2.11.55 |
| traefik / traefik | affected 3.0.0 through 3.7.10 |
CWE
CWE-863
References
- https://github.com/traefik/traefik/security/advisories/GHSA-g55h-rg46-x9c5
- https://www.vulncheck.com/advisories/traefik-before-2.11.55-mtls-bypass-via-tls-option-conflict
ADP enrichment
No English description supplied.
No references supplied.