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CVE Vulnerability Details :
CVE-2026-27585
PUBLISHED
More InfoOfficial Page
Assigner-GitHub_M
Assigner Org ID-a0819718-46f1-4df5-94e2-005712e83aaa
View Known Exploited Vulnerability (KEV) details
Published At-24 Feb, 2026 | 16:06
Updated At-24 Feb, 2026 | 16:06
Rejected At-
▼CVE Numbering Authority (CNA)
Caddy's improper sanitization of glob characters in file matcher may lead to bypassing security protections

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.

Affected Products
Vendor
caddyserver
Product
caddy
Versions
Affected
  • < 2.11.1
Problem Types
TypeCWE IDDescription
CWECWE-20CWE-20: Improper Input Validation
Type: CWE
CWE ID: CWE-20
Description: CWE-20: Improper Input Validation
Metrics
VersionBase scoreBase severityVector
4.06.9MEDIUM
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
Version: 4.0
Base score: 6.9
Base severity: 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
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/caddyserver/caddy/security/advisories/GHSA-4xrr-hq4w-6vf4
x_refsource_CONFIRM
https://github.com/caddyserver/caddy/blob/68d50020eef0d4c3398b878f17c8092ca5b58ca0/modules/caddyhttp/fileserver/matcher.go#L361
x_refsource_MISC
https://github.com/caddyserver/caddy/blob/68d50020eef0d4c3398b878f17c8092ca5b58ca0/modules/caddyhttp/fileserver/matcher.go#L398
x_refsource_MISC
https://github.com/caddyserver/caddy/releases/tag/v2.11.1
x_refsource_MISC
Hyperlink: https://github.com/caddyserver/caddy/security/advisories/GHSA-4xrr-hq4w-6vf4
Resource:
x_refsource_CONFIRM
Hyperlink: https://github.com/caddyserver/caddy/blob/68d50020eef0d4c3398b878f17c8092ca5b58ca0/modules/caddyhttp/fileserver/matcher.go#L361
Resource:
x_refsource_MISC
Hyperlink: https://github.com/caddyserver/caddy/blob/68d50020eef0d4c3398b878f17c8092ca5b58ca0/modules/caddyhttp/fileserver/matcher.go#L398
Resource:
x_refsource_MISC
Hyperlink: https://github.com/caddyserver/caddy/releases/tag/v2.11.1
Resource:
x_refsource_MISC
Details not found