CVE-2026-104849
- Source
- https://cve.org/CVERecord?id=CVE-2026-104849
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-104849.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-104849
- Aliases
- Downstream
ROOT (1)
- Published
- 2026-10-02T16:17:28Z
- Modified
- 2026-10-21T02:54:32Z
- Severity
-
- 9.5 (Critical) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H CVSS Calculator
- Summary
- Tinypool: Prototype Pollution Gadget to RCE in run() options
- Details
-
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.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-1321", "CWE-94" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/104xxx/CVE-2026-104849.json" }- References
-
- https://github.com/tinylibs/tinypool/releases/tag/v2.1.2
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/104xxx/CVE-2026-104849.json
- https://github.com/tinylibs/tinypool/security/advisories/GHSA-85c8-ppgw-ccpr
- https://nvd.nist.gov/vuln/detail/CVE-2026-104849
- https://github.com/tinylibs/tinypool/commit/f41411a3e23324c674f35a19a3240f7a7c40ffbf
- https://github.com/tinylibs/tinypool/pull/135
Affected packages
Git / github.com/tinylibs/tinypool
Affected ranges
- Type
- GIT
- Repo
- https://github.com/tinylibs/tinypool
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixedFixed
- Database specific
-
Show details
{ "extracted_events": [ { "range": [ { "introduced": "0" }, { "fixed": "2.1.2" } ], "source": "AFFECTED_FIELD", "strategy": "StringRangeExpression" }, { "range": [ { "fixed": "f41411a3e23324c674f35a19a3240f7a7c40ffbf" } ], "source": "REFERENCES_COMMIT" }, { "original_tag": "v2.1.2", "range": [ { "fixed": "5e18382a9aaa3344035905384b18a88a9da8c8bb" } ], "source": "REFERENCES_TAG" } ] }