CVE-2026-49342 | YARD is a documentation generation tool for the Ruby program… | CVSS 5.3 MEDIUM

Description

YARD is a documentation generation tool for the Ruby programming language. Prior to version 0.9.44, YARD's static cache lookup reads a request path before the router's path cleanup runs. When a server is configured with a document root, a traversal path such as `/../yard-cache-secret.html` is joined against that root and can return a readable sibling `.html` file outside the intended static tree. Version 0.9.44 patches the issue.

Metadata

CVE ID: CVE-2026-49342
State: PUBLISHED
Assigner: GitHub_M
Reserved: 2026-05-29 14:35 UTC
Published: 2026-06-19 19:13 UTC
Last updated: 2026-06-19 19:13 UTC
Primary CWE: CWE-22
CWE-22: Improper Limitation of a Pathname to a Restricted Di…
Vendor / Product: lsegal / yard
Sources: cve.org · NVD

Severity & Metrics

5.3 MEDIUM CVSS 3.1

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

Affected products (1)

Vendor	Product	Platform	Versions
lsegal	yard	—	< 0.9.44

Weakness (CWE)

CWE	Source	Description
CWE-22	cna	CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CVSS scores (1)

Score	Severity	Version	Source	Vector
5.3	MEDIUM	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

References (2)

https://github.com/lsegal/yard/security/advisories/GHSA-pxcc-8665-phx8 https://github.com/lsegal/yard/security/advisories/GHSA-pxcc-8665-phx8
https://github.com/lsegal/yard/commit/f78c19f0dd33a407085b4ed181bb60c0aa0078b4 https://github.com/lsegal/yard/commit/f78c19f0dd33a407085b4ed181bb60c0aa0078b4