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CVE-2026-120440

MEDIUM CVSS: 5.3 Published: 2026-11-02 Modified: 2026-11-02

Description

QuickJS-NG before 0.16.0 contains a memory leak vulnerability in js_atomics_store() in quickjs.c that fails to free the converted value when returning a RangeError. Attackers running JavaScript can repeatedly call Atomics.store with a valueOf that detaches or shrinks the buffer to exhaust heap memory and cause denial of service.

Affected Platforms

Unknown

Weakness Type

CWE-401

References