CVE-2026-44001 — vm2: Sandbox Escape via Promise Constructor Unhandled Rejection (Process Crash DoS)
vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, a sandbox escape vulnerability in vm2 v3.10.5 allows any sandboxed code to crash the host Node.js process via a si…
Published: 2026-05-13 · CVSS: 8.6 · CVSS 3.1
vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, a sandbox escape vulnerability in vm2 v3.10.5 allows any sandboxed code to crash the host Node.js process via a single Promise constructor that triggers an unhandled rejection propagating to the host. The fix for CVE-2026-22709 (v3.10.2) only sanitized the onRejected callback in .then() and .catch() overrides and did not address the executor-to-unhandledRejection path. This vulnerability is fixed in 3.11.0.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7