Caddy is an extensible server platform that uses TLS by default.

Code

The project this record applies to. Exploit listings stay in References.

• Repository · github.com

Timeline

Detection, updates, and resolution for this record.

1. Mar 7, 2026 · NIST NVD

   Detected

   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.

2. Jun 17, 2026 · NIST NVD

   Updated

   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.

Affected

• cpe caddyserver/caddyversion unspecified

Sources

• CVE.orgVulnerability recordCVE-2026-30851

  Official CVE identifier

  cve.org
• NIST NVDVulnerability recordCVE-2026-30851

  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.

  nvd.nist.gov

References

• Issue Tracking · github.com
• Issue Tracking · github.com
• Issue Tracking · github.com
• Exploit · github.com