CVE-2026-92949 vm2 3.9.6 before 3.11.7 Sandbox Bypass via Accessor Descriptor

vm2 versions from 3.9.6 before 3.11.7 fail to properly restrict access to accessor properties on frozen objects, allowing sandboxed scripts to bypass vm.freeze and vm.readonly protections. Attackers can use Object.getOwnPropertyDescriptor or lookupSetter to extract and invoke host object setters...

CVE-2026-92949

vm2 versions from 3.9.6 before 3.11.7 fail to properly restrict access to accessor properties on frozen objects, allowing sandboxed scripts to bypass vm.freeze() and vm.readonly() protections. An attacker can use Object.getOwnPropertyDescriptor() or __lookupSetter__() to extract and invoke host o...