CVE-2026-104848
Severity not reportedTinypool is a minimal Node.js worker thread pool implementation.
Tinypool is a minimal Node.js worker thread pool implementation. Prior to 2.1.1, Tinypool constructs ThreadPool.options from a normal options object and reads the execArgv and env worker options in dist/index.js, allowing values inherited from a polluted Object.prototype to be copied into own properties and passed to worker_threads.Worker. An attacker who can first pollute either property can cause each newly spawned worker to load attacker-selected JavaScript through command-line preload arguments or NODE_OPTIONS, resulting in code execution with the host process's privileges and possible access to CI secrets, signing material, or build artifacts. This issue is fixed in version 2.1.1.
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/tinylibs/tinypool/commit/24df4e730e7d0857a6d226c9b58f8924227404fd security-advisories@github.com
- https://github.com/tinylibs/tinypool/pull/134 security-advisories@github.com
- https://github.com/tinylibs/tinypool/releases/tag/v2.1.1 security-advisories@github.com
- https://github.com/tinylibs/tinypool/security/advisories/GHSA-5gmw-xhrv-c9v3 security-advisories@github.com
- https://github.com/tinylibs/tinypool/security/advisories/GHSA-5gmw-xhrv-c9v3 134c704f-9b21-4f2e-91b3-4a467353bcc0