CVE-2026-104849

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.

CVSS

No CVSS.

References

Link	Resource
https://github.com/tinylibs/tinypool/commit/f41411a3e23324c674f35a19a3240f7a7c40ffbf
https://github.com/tinylibs/tinypool/pull/135
https://github.com/tinylibs/tinypool/releases/tag/v2.1.2
https://github.com/tinylibs/tinypool/security/advisories/GHSA-85c8-ppgw-ccpr
https://github.com/tinylibs/tinypool/security/advisories/GHSA-85c8-ppgw-ccpr

Configurations

No configuration.

History

06 Oct 2026, 17:17

Type	Values Removed	Values Added
References	~~() https://github.com/tinylibs/tinypool/security/advisories/GHSA-85c8-ppgw-ccpr -~~	() https://github.com/tinylibs/tinypool/security/advisories/GHSA-85c8-ppgw-ccpr -

02 Oct 2026, 17:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-02 17:17

Updated : 2026-10-06 17:17

NVD link : CVE-2026-104849

Mitre link : CVE-2026-104849

CVE.ORG link : CVE-2026-104849

JSON object : View

Products Affected

No product.

CWE

CWE-94

Improper Control of Generation of Code ('Code Injection')

CWE-1321

Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

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