8.7
High
CVE-2026-47135 vm2 is an open source vm/sandbox for Node.js
Description
vm2 is an open source vm/sandbox for Node.js. Prior to version 3.11.4, Symbol.for override in setup-sandbox.js only intercepts 2 of 9 dangerous Node.js cross-realm symbols. Combined with the bridge's set/defineProperty/deleteProperty traps having no isDangerousCrossRealmSymbol key check, sandbox code can obtain real cross-realm symbols, write them to host objects, and control host-side behavior — verified with a full util.promisify hijack chain. This issue has been patched in version 3.11.4.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| vm2 3.11 | earliest → < 3.11.4 | 3.11.4 |
Other CVEs of vm2
The 77 CVEs of vm2 →
CVE-2026-100723
vm2 before 3.12.2 does not apply its Buffer backing-store ownership invariant (byteOffset === 0 and buffer.byteLength…
6.9
Medium
CVE-2026-100722
vm2 before 3.12.2 does not apply host-side Promise rejection handling in the sandbox-to-host construct trap
8.9
High
CVE-2026-100721
vm2 before 3.12.2 contains an authorization bypass in the NodeVM external-module resolver
9.5
Critical
CVE-2026-93606
vm2 (npm) versions 3.12.0 and earlier contain a sandbox escape in `VM` and `NodeVM`
10.0
Critical