CVE-2026-3979

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 v3 5.3 MEDIUM
CVSS v2.0 4.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.4

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

4.3^/10

CVSS v2.0 : MEDIUM

Vector : AV:L/AC:L/Au:S/C:P/I:P/A:P

Exploitability : 3.1 / Impact : 6.4

Access Vector LOCAL

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/quickjs-ng/quickjs/
https://github.com/quickjs-ng/quickjs/commit/daab4ad4bae4ef071ed0294618d6244e92def4cd
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

Configurations

No configuration.

History

12 Mar 2026, 21:07

Type	Values Removed	Values Added
Summary		(es) Se ha encontrado una vulnerabilidad en quickjs-ng quickjs hasta la versión 0.12.1. Esto afecta a la función js_iterator_concat_return del archivo quickjs.c. Esta manipulación causa uso después de liberar. El ataque requiere acceso local. El exploit ha sido publicado y puede ser utilizado. Nombre del parche: daab4ad4bae4ef071ed0294618d6244e92def4cd. Aplicar un parche es la acción recomendada para solucionar este problema.

12 Mar 2026, 04:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-03-12 04:16

Updated : 2026-03-12 21:07

NVD link : CVE-2026-3979

Mitre link : CVE-2026-3979

CVE.ORG link : CVE-2026-3979

JSON object : View

Products Affected

No product.

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-416

Use After Free

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