Vulnerability Description
Caddy is an extensible server platform that uses TLS by default. From 2.4.0 until 2.11.3, the authorization layer and the /config traversal layer do not agree on what object the path refers to. In this case, a path authorized for one config object is accepted, but then resolves to a different config object during traversal. This happens because the authorization layer uses string prefix matching and the /config traversal layer parses array indices numerically using strconv.Atoi(). This vulnerability is fixed in 2.11.3.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Caddyserver | Caddy | >= 2.4.0, < 2.11.3 |
Related Weaknesses (CWE)
References
- https://github.com/caddyserver/caddy/security/advisories/GHSA-x5w9-xh9r-mvfcExploitVendor Advisory
- https://github.com/caddyserver/caddy/security/advisories/GHSA-x5w9-xh9r-mvfcExploitVendor Advisory
FAQ
What is CVE-2026-45692?
CVE-2026-45692 is a vulnerability with a CVSS score of 5.4 (MEDIUM). Caddy is an extensible server platform that uses TLS by default. From 2.4.0 until 2.11.3, the authorization layer and the /config traversal layer do not agree on what object the path refers to. In thi...
How severe is CVE-2026-45692?
CVE-2026-45692 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-45692?
Check the references section above for vendor advisories and patch information. Affected products include: Caddyserver Caddy.