CVE-2026-104849 - Tinypool: Prototype Pollution Gadget to RCE in run() options
CVE ID :CVE-2026-104849
Published : Oct. 2, 2026, 4:17 p.m. | 56 minutes ago
Description :Tinypool is a minimal Node.js worker thread pool implementation. Prior to 2.1.2, Tinypool reads filename from a caller-supplied options object in pool.run(task, options) without requiring an own property, so a polluted Object.prototype.filename can replace the intended worker module. Applications are affected only when they pass their own second-argument options object to pool.run(); calls without that argument use the trusted default options object. An attacker who can first pollute the prototype can cause the worker pool to load attacker-selected JavaScript and can read or modify task data with the host process's privileges. This issue is fixed in version 2.1.2.
Severity: 0.0 | NA
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Published : Oct. 2, 2026, 4:17 p.m. | 56 minutes ago
Description :Tinypool is a minimal Node.js worker thread pool implementation. Prior to 2.1.2, Tinypool reads filename from a caller-supplied options object in pool.run(task, options) without requiring an own property, so a polluted Object.prototype.filename can replace the intended worker module. Applications are affected only when they pass their own second-argument options object to pool.run(); calls without that argument use the trusted default options object. An attacker who can first pollute the prototype can cause the worker pool to load attacker-selected JavaScript and can read or modify task data with the host process's privileges. This issue is fixed in version 2.1.2.
Severity: 0.0 | NA
Visit the link for more details, such as CVSS details, affected products, timeline, and more...