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.
References (4)
Scores
CVSS v3
8.1
EPSS
0.0002
EPSS Percentile
5.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
total
Details
CWE
CWE-345
CWE-287
Status
published
Products (2)
caddyserver/caddy
2.10.0 - 2.11.2Go
caddyserver/caddy
2.10.0 - 2.11.2
Published
Mar 07, 2026
Tracked Since
Mar 08, 2026