# CVE-2025-9308: node-yarnpkg: A vulnerability has been found in yarnpkg Yarn up to 1.22.22

CVE-2025-9308 is fixed in node-yarnpkg on 1 platform, first by DEBIAN-CVE-2025-9308, released August 21, 2025. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2025-9308
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0022
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Aug 21, 2025

## Description

A vulnerability has been found in yarnpkg Yarn up to 1.22.22. This impacts the function setOptions of the file src/util/request-manager.js. Such manipulation leads to inefficient regular expression complexity. Local access is required to approach this attack. This vulnerability only affects products that are no longer supported by the maintainer.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | node-yarnpkg Debian 13.5 (trixie) | 4.0.2+dfsg-2 | [DEBIAN-CVE-2025-9308](https://patchblox.com/security/data/fix/linux/debian-cve-2025-9308.md) | Aug 21, 2025 |
| Linux | node-yarnpkg Debian 14 | 4.0.2+dfsg-2 | [DEBIAN-CVE-2025-9308](https://patchblox.com/security/data/fix/linux/debian-cve-2025-9308.md) | Aug 21, 2025 |

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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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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