CVE-2026-27585
Medium
Description
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.
SeverityMedium
CVSS6.5
Exploit probability—
Product
Caddy
PublishedFeb 24, 2026
First seenFeb 24, 2026
Weakness typeCWE-20Improper input validation
How to fix
Update
- caddyserver caddy2.11.1 or later
- github.com/caddyserver/caddy/v22.11.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| caddyserver caddy | v < 2.11.1 | 2.11.1 |
| github.com/caddyserver/caddy/v2Go | v < 2.11.1 | 2.11.1 |
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