CVE-2026-49342
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.
- Score
- CVSS 3.1 5.3 Medium
- Status
- Deferred - security-advisories@github.com
- Published
- 2026-06-19
- Last modified
- 2026-10-25
- Weaknesses
- CWE-22
Affected products
References
- https://github.com/lsegal/yard/security/advisories/GHSA-pxcc-8665-phx8
- https://github.com/lsegal/yard/commit/f78c19f0dd33a407085b4ed181bb60c0aa0078b4
