CVEvulnerability

CVE-2026-30851

8.8 HIGH Published 2026-03-07 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2026-03-07
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
8.1 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CVSS 3.1 ([email protected])
8.8 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-287, CWE-345

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.

Affected configurations

• caddyserver caddy (>= 2.10.0 < 2.11.2)

Related

Weakness · CWE (2)

  • CWE-287 Improper Authentication weakness
  • CWE-345 Insufficient Verification of Data Authenticity weakness

References