CVE-2026-92700

Caddy: fileHidden() case-sensitive pattern bypass — exposes "hidden" files via case variation

State: Published
Severity: 6.3 Medium
Published: Sep 23, 2026
Updated: Sep 23, 2026
Reserved: Sep 16, 2026

Description

Caddy is an extensible server platform that uses TLS by default. In version 2.11.3 and earlier, in modules/caddyhttp/fileserver/staticfiles.go, fileHidden() uses case-sensitive filepath.Match checks, so case variants can bypass hide rules on case-insensitive filesystems or when mixed-case paths coexist and expose files intended to be hidden.

Scores

CVSS	Score	Vector	Source
4.0	6.3 Medium	CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N	GitHub_M

Weaknesses

CWE-178 Improper Handling of Case Sensitivity

Affected Products

Product	Versions
caddycaddyserver	<= 2.11.3Affected

References

https://github.com/caddyserver/caddy/security/advisories/GHSA-j8px-rmrx-76h9

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