CVE-2026-27585CWE-20

Caddy's improper sanitization of glob characters in file matcher may lead to bypassing security protections

Medium · published February 24, 2026

CVSS v4.0
6.9
EPSS
0%
Percentile
38.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
6.9 · MEDIUM
Vector
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
EPSS
0.00456 · 38.6th percentile
Weakness
CWE-20 · Improper Input Validation
Published
2026-02-24T16:06Z
EPSS history
Timeline
  • 24 FEB 16:06Z
    Caddy's improper sanitization of glob characters in file matcher may lead to bypassing security protections
    cvelistv5