Git · Quickjs · CVE-2026-3979
**Name of the Vulnerable Software and Affected Versions**
quickjs-ng quickjs versions through 0.12.1
**Description**
An issue exists in quickjs-ng quickjs up to version 0.12.1, specifically within the `js iterator concat return` function located in the `quickjs.c` file. This manipulation leads to a use-after-free condition. Exploitation requires local access. The exploit has been published and is potentially available for use. The vulnerable function is `js iterator concat return`.
**Recommendations**
quickjs-ng quickjs versions through 0.12.1: Apply the patch daab4ad4bae4ef071ed0294618d6244e92def4cd to resolve this issue.