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CVE-2026-34763

Rack

Description

Rack is a modular Ruby web server interface. Prior to versions 2.2.23, 3.1.21, and 3.2.6, Rack::Directory interpolates the configured root path directly into a regular expression when deriving the displayed directory path. If root contains regex metacharacters such as +, *, or ., the prefix stripping can fail and the generated directory listing may expose the full filesystem path in the HTML output. This issue has been patched in versions 2.2.23, 3.1.21, and 3.2.6.

CVSS 5.3EPSS 0.24%Risk 0.54
View source
Published
2026-04-02 17:16:24
Affected versions
<2.2.23, <3.1.21, <3.2.6
Type
Package
Last modified
2026-07-24 21:10:00
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N