{"id":"CVE-2026-120438","published":"2026-11-02T15:17:25.767","lastModified":"2026-11-02T19:34:23.993","description":"QuickJS-NG before 0.16.0 contains an integer overflow in js_proxy_get_own_property_names() in quickjs.c that causes a heap buffer overflow on 32-bit hosts. Attackers running JavaScript can return a large array-like object from a Proxy ownKeys trap to wrap the allocation size, causing crashes or potential code execution.","cvssScore":7.8,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwes":["CWE-190"],"vendors":[],"products":[],"references":[{"url":"https://github.com/quickjs-ng/quickjs/blob/v0.15.1/quickjs.c#L51509","tags":[]},{"url":"https://github.com/quickjs-ng/quickjs/commit/252209d99cf112568160548bdcaa98d95e0d0068","tags":[]},{"url":"https://github.com/quickjs-ng/quickjs/releases/tag/v0.16.0","tags":[]},{"url":"https://github.com/quickjs-ng/quickjs/security/advisories/GHSA-jp52-chwg-2p9p","tags":[]},{"url":"https://www.vulncheck.com/advisories/quickjs-ng-before-0.16.0-heap-buffer-overflow-via-proxy-ownkeys-enumeration","tags":[]}],"exploitRefs":[{"url":"https://github.com/quickjs-ng/quickjs/blob/v0.15.1/quickjs.c#L51509","tags":[]},{"url":"https://github.com/quickjs-ng/quickjs/commit/252209d99cf112568160548bdcaa98d95e0d0068","tags":[]},{"url":"https://github.com/quickjs-ng/quickjs/releases/tag/v0.16.0","tags":[]},{"url":"https://github.com/quickjs-ng/quickjs/security/advisories/GHSA-jp52-chwg-2p9p","tags":[]}],"hasPoc":true,"ai":null}