Vulnerability DatabaseCVE-2026-52844
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CVE-2026-52844
Published:June 23, 2026
Updated:June 29, 2026
Caddy is an extensible server platform that uses TLS by default. Prior to 2.11.4, on Windows, Caddy path matchers treat /private\secret.txt as outside /private/, but file_server later resolves the same request path as private\secret.txt on disk. An unauthenticated remote client can bypass Caddy path-scoped auth/deny routes protecting /private/. This vulnerability is fixed in 2.11.4.
Affected Packages
https://github.com/caddyserver/caddy.git (GITHUB):
Affected version(s) >=v0.5.0 <v2.11.4
Fix Suggestion:
Update to version v2.11.4
github.com/caddyserver/caddy/v2 (GO):
Affected version(s) >=v0.5.0 <v2.11.4
Fix Suggestion:
Update to version v2.11.4
Additional Notes
The description of this vulnerability differs from MITRE.
Related Resources (2)
https://github.com/caddyserver/caddy/security/advisories/GHSA-qrp7-cvwr-j2c6
https://github.com/caddyserver/caddy
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CVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Improper Access Control
CWE-284
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-22
EPSS
Base Score:
0.40