{"affected":[{"defaultStatus":"unaffected","ecosystem":"github","packageName":"quickjs-ng/quickjs","product":"QuickJS-NG","source":"CNA: VulnCheck","vendor":"quickjs-ng","versions":[{"lessThan":"0.16.0","status":"affected","version":"0","versionType":"semver"}]}],"cveId":"CVE-2026-120438","cwes":["CWE-190"],"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.","epss":null,"exploits":[],"kev":null,"metrics":[{"score":8.5,"severity":"high","source":"CNA: VulnCheck","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},{"score":7.8,"severity":"high","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}],"modifiedAt":1793629740633,"publishedAt":1793629740633,"references":[{"source":"CNA: VulnCheck","tags":["vendor-advisory"],"url":"https://github.com/quickjs-ng/quickjs/security/advisories/GHSA-jp52-chwg-2p9p"},{"source":"CNA: VulnCheck","tags":["patch"],"url":"https://github.com/quickjs-ng/quickjs/commit/252209d99cf112568160548bdcaa98d95e0d0068"},{"source":"CNA: VulnCheck","tags":["release-notes"],"url":"https://github.com/quickjs-ng/quickjs/releases/tag/v0.16.0"},{"source":"CNA: VulnCheck","tags":["technical-description"],"url":"https://github.com/quickjs-ng/quickjs/blob/v0.15.1/quickjs.c#L51509"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/quickjs-ng-before-0.16.0-heap-buffer-overflow-via-proxy-ownkeys-enumeration"}],"remediation":[],"revision":"c195b26f1db618bcfcf896d2f9e137bdf32ecf333773fefbf075f561dffc3d58","sources":[{"modifiedAt":1793629740633,"name":"CNA: VulnCheck","retrievedAt":1793632125193,"url":"https://www.cve.org/CVERecord?id=CVE-2026-120438"}],"ssvc":null,"status":"published","title":"QuickJS-NG before 0.16.0 Heap Buffer Overflow via Proxy ownKeys Enumeration","updatedAt":1793632125193}