Moole Vulnerability Database

Find real vulnerabilities before they ship

Medium

CVE-2026-27585

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.

VectorNETWORK

PublishedFeb 24, 2026, 17:29

Published Bysecurity-advisories@github.com

Base Score

Score6.5

Affected Versions

Package (Ecosystem)IntroducedFixedLimit

github.com/caddyserver/caddy/v2(Go)02.11.1N/A

References

https://github.com/caddyserver/caddy/blob/68d50020eef0d4c3398b878f17c8092ca5b58ca0/modules/caddyhttp/fileserver/matcher.go#L361
https://github.com/caddyserver/caddy/blob/68d50020eef0d4c3398b878f17c8092ca5b58ca0/modules/caddyhttp/fileserver/matcher.go#L398
https://github.com/caddyserver/caddy/releases/tag/v2.11.1
https://github.com/caddyserver/caddy/security/advisories/GHSA-4xrr-hq4w-6vf4

Weakness Type

CWE-20

CVSS Metrics

Base Score

6.9

Vector String

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Base SeverityMedium

Version

4.0

Attack Vector (AV)

NETWORK