CVE-2026-44001
vm2: Sandbox Escape via Promise Constructor Unhandled Rejection (Process Crash DoS)
- State
- Published
- Severity
- 8.6 High
- Published
- May 13, 2026
- Updated
- Sep 7, 2026
- Reserved
- May 4, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 8.6 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H | GitHub_M |
| 3.1 | 8.6 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H | redhat-SADP |
Weaknesses
- CWE-248 Uncaught Exception
Affected Products
| Product | Versions |
|---|---|
vm2patriksimek |
|
References
- https://github.com/patriksimek/vm2/security/advisories/GHSA-hw58-p9xv-2mjh
- https://access.redhat.com/security/cve/CVE-2026-44001vdb-entry
- RHBZ#2477208issue-tracking
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44001.json
- https://access.redhat.com/errata/RHSA-2026:50850vendor-advisory
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