{"id":"DEBIAN-CVE-2026-120440","details":"QuickJS-NG before 0.16.0 contains a memory leak vulnerability in js_atomics_store() in quickjs.c that fails to free the converted value when returning a RangeError. Attackers running JavaScript can repeatedly call Atomics.store with a valueOf that detaches or shrinks the buffer to exhaust heap memory and cause denial of service.","modified":"2026-11-06T12:02:20.665296929Z","published":"2026-11-02T15:17:26.103Z","upstream":["CVE-2026-120440"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-120440"}],"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-2026-120440.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/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"}]}