CVE-2026-3979

MEDIUM

quickjs-ng quickjs <=0.12.1 - Use After Free

Title source: llm

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.

References (8)

[Various Sources] https://github.com/quickjs-ng/quickjs/

[Patch] https://github.com/quickjs-ng/quickjs/commit/daab4ad4bae4ef071ed0294618d6244e92def4cd

[Issue Tracking] https://github.com/quickjs-ng/quickjs/issues/1368

[Issue Tracking] https://github.com/quickjs-ng/quickjs/issues/1368#issue-4004680962

[Issue Tracking] https://github.com/quickjs-ng/quickjs/pull/1370

[Permissions Required, VDB Entry] https://vuldb.com/?ctiid.350414

[Permissions Required, VDB Entry] https://vuldb.com/?id.350414

[Permissions Required, VDB Entry] https://vuldb.com/?submit.769600

Scores

CVSS v3 5.3

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Classification

CWE

CWE-119 CWE-416

Status draft

Timeline

Published Mar 12, 2026

Tracked Since Mar 12, 2026