Vulnerability Description
A flaw has been found in quickjs-ng quickjs up to 0.12.1. This affects the function js_iterator_concat_return of the file quickjs.c. This manipulation causes use after free. The attack requires local access. The exploit has been published and may be used. Patch name: daab4ad4bae4ef071ed0294618d6244e92def4cd. Applying a patch is the recommended action to fix this issue.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/quickjs-ng/quickjs/
- https://github.com/quickjs-ng/quickjs/commit/daab4ad4bae4ef071ed0294618d6244e92d
- https://github.com/quickjs-ng/quickjs/issues/1368
- https://github.com/quickjs-ng/quickjs/issues/1368#issue-4004680962
- https://github.com/quickjs-ng/quickjs/pull/1370
- https://vuldb.com/?ctiid.350414
- https://vuldb.com/?id.350414
- https://vuldb.com/?submit.769600
FAQ
What is CVE-2026-3979?
CVE-2026-3979 is a vulnerability with a CVSS score of 5.3 (MEDIUM). A flaw has been found in quickjs-ng quickjs up to 0.12.1. This affects the function js_iterator_concat_return of the file quickjs.c. This manipulation causes use after free. The attack requires local ...
How severe is CVE-2026-3979?
CVE-2026-3979 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-3979?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.