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…
Published: 2026-09-17 · CVSS: 6.3 · CVSS 4.0
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 directly, mutating properties the embedder explicitly marked read-only.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7