Improper Input Validation Affecting caddy package, versions <2.6.2-12+deb13u1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.32% (24th percentile)

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  • Snyk IDSNYK-ECHOLATEST-CADDY-18601859
  • published10 Aug 2026
  • disclosed24 Feb 2026

Introduced: 24 Feb 2026

CVE-2026-27585  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade Echo:latest caddy to version 2.6.2-12+deb13u1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream caddy package and not the caddy package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1