VULNERABILITY INTELLIGENCE

CVE-2026-30851

CVSS score8.1 HIGH
EPSS probability0.26%
CISA KEVNot currently listed
Published2026-03-07
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Description

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.

Weakness classification

  • security-advisories@github.com: CWE-287

Primary references