Bug 2442409 (CVE-2026-27585) - CVE-2026-27585 github.com/caddyserver/caddy/v2/modules/caddyhttp/fileserver: Caddy: Path security bypass due to unsanitized backslashes
Summary: CVE-2026-27585 github.com/caddyserver/caddy/v2/modules/caddyhttp/fileserver: ...
Keywords:
Status: NEW
Alias: CVE-2026-27585
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2442472
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-02-24 17:06 UTC by OSIDB Bzimport
Modified: 2026-02-24 21:31 UTC (History)
0 users

Fixed In Version:
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Description OSIDB Bzimport 2026-02-24 17:06:12 UTC 
Caddy is an extensible server platform that uses TLS by default. Prior to version 2.11.1, the path sanitization routine in file matcher doesn't sanitize backslashes which can lead to bypassing path related security protections. It affects users with specific Caddy and environment configurations. Version 2.11.1 fixes the issue.
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