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CVE-2026-30851
Published: Mar 7, 2026
Modified: Mar 9, 2026
PUBLISHED
CVSS v3.1
8.1
HIGH
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.
| Vendor | Product | Versions |
|---|---|---|
caddyserver | caddy | affected >= 2.10.0, < 2.11.2 |
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
References
https://github.com/caddyserver/caddy/security/advisories/GHSA-7r4p-vjf4-gxv4
x_refsource_CONFIRM
https://github.com/caddyserver/caddy/issues/6610
x_refsource_MISC
https://github.com/caddyserver/caddy/pull/6608
x_refsource_MISC
https://github.com/caddyserver/caddy/pull/7545
x_refsource_MISC
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