{"id":"CVE-2026-120439","published":"2026-11-02T15:17:25.937","lastModified":"2026-11-02T19:34:23.993","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.","cvssScore":7,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H","cwes":["CWE-190"],"vendors":[],"products":[],"references":[{"url":"https://github.com/quickjs-ng/quickjs/blob/v0.15.1/quickjs.c#L60032","tags":[]},{"url":"https://github.com/quickjs-ng/quickjs/commit/e93cca611908e12b824ec85fbee6b31a5ee61568","tags":[]},{"url":"https://github.com/quickjs-ng/quickjs/releases/tag/v0.16.0","tags":[]},{"url":"https://github.com/quickjs-ng/quickjs/security/advisories/GHSA-9wv5-5cgr-grj6","tags":[]},{"url":"https://www.vulncheck.com/advisories/quickjs-ng-before-0.16.0-heap-buffer-overflow-via-typedarray-prototype-sort","tags":[]}],"exploitRefs":[{"url":"https://github.com/quickjs-ng/quickjs/blob/v0.15.1/quickjs.c#L60032","tags":[]},{"url":"https://github.com/quickjs-ng/quickjs/commit/e93cca611908e12b824ec85fbee6b31a5ee61568","tags":[]},{"url":"https://github.com/quickjs-ng/quickjs/releases/tag/v0.16.0","tags":[]},{"url":"https://github.com/quickjs-ng/quickjs/security/advisories/GHSA-9wv5-5cgr-grj6","tags":[]}],"hasPoc":true,"ai":null}