# CVE-2026-49342: yard: YARD is a documentation generation tool for the Ruby programming language

CVE-2026-49342 is fixed in yard on 1 platform by DEBIAN-CVE-2026-49342 (version 0.9.44-1), released June 24, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-49342
- Priority: Routine
- CVSS: 5.3 (medium)
- EPSS: 0.0033
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jun 19, 2026

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | yard Debian 14 | 0.9.44-1 | [DEBIAN-CVE-2026-49342](https://patchblox.com/security/data/fix/linux/debian-cve-2026-49342.md) | Jun 24, 2026 |

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Data as of 2026-11-08T00:53:09Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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