Access Control Bypass Affecting github.com/caddyserver/caddy/v2/modules/caddyhttp package, versions <2.11.4


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.62% (47th percentile)

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  • Snyk IDSNYK-GOLANG-GITHUBCOMCADDYSERVERCADDYV2MODULESCADDYHTTP-17706373
  • published30 Jun 2026
  • disclosed16 Jun 2026
  • creditVincent550102

Introduced: 16 Jun 2026

CVE-2026-52844  (opens in a new tab)
CWE-22  (opens in a new tab)
CWE-284  (opens in a new tab)

How to fix?

Upgrade github.com/caddyserver/caddy/v2/modules/caddyhttp to version 2.11.4 or higher.

Overview

Affected versions of this package are vulnerable to Access Control Bypass via improper handling of encoded backslashes in request paths on Windows systems. An attacker can access sensitive files within protected directories by crafting requests that use encoded backslash characters to bypass path-based authorization checks.

CVSS Base Scores

version 4.0
version 3.1