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.

INFO

Published Date :

2026-03-07T16:28:37.097Z

Last Modified :

2026-03-09T18:24:49.691Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-30851 vulnerability.

Vendors Products
Caddyserver
  • Caddy
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-30851.

URL Resource
https://github.com/caddyserver/caddy/issues/6610 cve-icon cve-icon
https://github.com/caddyserver/caddy/pull/6608 cve-icon cve-icon
https://github.com/caddyserver/caddy/pull/7545 cve-icon cve-icon
https://github.com/caddyserver/caddy/security/advisories/GHSA-7r4p-vjf4-gxv4 cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact