{"id":"DEBIAN-CVE-2026-120438","details":"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.","modified":"2026-11-06T12:02:20.661812644Z","published":"2026-11-02T15:17:25.767Z","upstream":["CVE-2026-120438"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-120438"}],"affected":[{"package":{"name":"quickjs-ng","ecosystem":"Debian:14","purl":"pkg:deb/debian/quickjs-ng?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.16.2-1"}]}],"versions":["0.13.0-1","0.13.0-2","0.13.0-3","0.14.0-1","0.14.0-2","0.14.0-2~bpo13+1","0.14.0-2~bpo13+2","0.15.0-1","0.15.0-1~bpo13+1","0.15.1-1","0.15.1-1~bpo13+1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-120438.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V4","score":"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"}]}