CVE-2026-44001
Medium
Elevated severity or exploit probability.
CVSS base
8.6
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
EPSS — probability of exploitation (30 days)
0.4%
38.3th percentile
CISA KEV
Not listed
Weakness / dates
CWE-248
Published 2026-05-13 · modified 2026-08-06
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.
Affected
References
- exploit https://github.com/patriksimek/vm2/security/advisories/GHSA-hw58-p9xv-2mjh
- https://access.redhat.com/errata/RHSA-2026:50850
- https://access.redhat.com/security/cve/CVE-2026-44001
- https://bugzilla.redhat.com/show_bug.cgi?id=2477208
- exploit https://github.com/patriksimek/vm2/security/advisories/GHSA-hw58-p9xv-2mjh
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44001.json