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CVE-2026-120439

HIGH CVSS: 7.0 Published: 2026-11-02 Modified: 2026-11-02

Description

QuickJS-NG before 0.16.0 contains an integer overflow in js_typed_array_sort() in quickjs.c that allows attackers to cause a heap buffer overflow on 32-bit hosts. Attackers who can run JavaScript can call TypedArray.prototype.sort with a comparator on a typed array near 2^30 elements, wrapping the allocation size and writing indices past the buffer to crash or potentially execute code.

Affected Platforms

Unknown

Weakness Type

CWE-190

References