CVE-2026-34763

MediumCVSS 5.3/10Last modified Jul 24, 2026

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.

Metrics

CVSS 3.1 5.3/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Weakness enumeration

CWE-625

Affected software

No affected versions have been published.

Timeline

Published
Apr 2, 2026
Last modified
Jul 24, 2026
NVD status
Analyzed

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CVE-2026-34763: Medium severity, CVSS 5.3 | Vulnix