CVE-2026-30851
HIGH WAF: Low
CVSS 8.8
Published: 2026-03-07
CWE-287
Caddy is an extensible server platform that uses TLS by default. From version 2.10.0 to before version 2.11.2, forward_auth copy_headers does not strip client-supplied headers, allowing identity injection and privilege escalation. This issue has been patched in version 2.11.2.
WAF Coverage Analysis
Improper Authentication
Low WAF Coverage
OWASP: A07:2021 Identification and Authentication Failures
Affected Software
| Vendor | Product | Version |
|---|---|---|
| caddyserver | caddy | 2.10.0 - 2.11.2 |
References
- github.com (Issue Tracking)
- github.com (Issue Tracking, Patch)
- github.com (Issue Tracking, Patch)
- github.com (Exploit, Mitigation, Patch, Vendor Advisory)