CVE-2026-52844

HIGH
MEDIUM Priority: 0.05 BB Relevance: 75/100
Published: 2026-06-23 Modified: 2026-10-25 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction Conf. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: Unchanged
C: High
I: None
A: None

Description

Caddy is an extensible server platform that uses TLS by default. Prior to 2.11.4, on Windows, Caddy path matchers treat /private\secret.txt as outside /private/*, but file_server later resolves the same request path as private\secret.txt on disk. An unauthenticated remote client can bypass Caddy path-scoped auth/deny routes protecting /private/*. This vulnerability is fixed in 2.11.4.

Weakness Classification (2)

Affected Software (1)

VendorProductVersion
caddyserver caddy < 2.11.4

References & Advisories (1)

Bug Bounty Relevance

75 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

7.5 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS — Exploitation Probability

0.62%
Raw Score 0.006190
Percentile 49.6%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00619
2026-10-28
0.00619

Intelligence Sources

nvd ref →