{"id":"CVE-2026-104848","published":"2026-10-02T17:17:03.473","lastModified":"2026-10-02T18:33:20.487","description":"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.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":["CWE-1321"],"vendors":[],"products":[],"references":[{"url":"https://github.com/tinylibs/tinypool/commit/24df4e730e7d0857a6d226c9b58f8924227404fd","tags":[]},{"url":"https://github.com/tinylibs/tinypool/pull/134","tags":[]},{"url":"https://github.com/tinylibs/tinypool/releases/tag/v2.1.1","tags":[]},{"url":"https://github.com/tinylibs/tinypool/security/advisories/GHSA-5gmw-xhrv-c9v3","tags":[]},{"url":"https://github.com/tinylibs/tinypool/security/advisories/GHSA-5gmw-xhrv-c9v3","tags":[]}],"exploitRefs":[{"url":"https://github.com/tinylibs/tinypool/commit/24df4e730e7d0857a6d226c9b58f8924227404fd","tags":[]},{"url":"https://github.com/tinylibs/tinypool/pull/134","tags":[]},{"url":"https://github.com/tinylibs/tinypool/releases/tag/v2.1.1","tags":[]},{"url":"https://github.com/tinylibs/tinypool/security/advisories/GHSA-5gmw-xhrv-c9v3","tags":[]},{"url":"https://github.com/tinylibs/tinypool/security/advisories/GHSA-5gmw-xhrv-c9v3","tags":[]}],"hasPoc":true,"ai":null}