CVE-2026-102992
Severity not reportedpiscina is a node.js worker pool implementation.
piscina is a node.js worker pool implementation. Prior to 4.9.4, 5.3.2, and 6.0.0-rc.5, Piscina stores ThreadPool.options in src/index.ts as a plain object that inherits from Object.prototype. Applications with a separate prototype-pollution primitive can therefore supply inherited values for security-sensitive options that do not have own defaults. An inherited execArgv value is passed to the Node.js Worker constructor and can preload attacker-controlled code in worker threads, an inherited loadBalancer function can execute during task scheduling, and inherited env values can alter worker environments. This issue is fixed in versions 4.9.4, 5.3.2, and 6.0.0-rc.5.
Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/piscinajs/piscina/commit/0cb12fca37f526065b072592afe954574dcc656f security-advisories@github.com
- https://github.com/piscinajs/piscina/commit/2f69f67159a0e48b38fd61fa4a91c2fdc19fff72 security-advisories@github.com
- https://github.com/piscinajs/piscina/commit/5be7bbb19e3787bb698862cd516121a578d690f7 security-advisories@github.com
- https://github.com/piscinajs/piscina/commit/bebbda255c2981cecddd36b171b94be2fd41c9a6 security-advisories@github.com
- https://github.com/piscinajs/piscina/releases/tag/v4.9.4 security-advisories@github.com
- https://github.com/piscinajs/piscina/releases/tag/v5.3.2 security-advisories@github.com
- https://github.com/piscinajs/piscina/releases/tag/v6.0.0-rc.5 security-advisories@github.com
- https://github.com/piscinajs/piscina/security/advisories/GHSA-67c8-pqhq-4rmx security-advisories@github.com
- https://github.com/piscinajs/piscina/security/advisories/GHSA-67c8-pqhq-4rmx 134c704f-9b21-4f2e-91b3-4a467353bcc0