CVE-2026-44001

Summary

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 Software

Weaknesses

• CWE-248: CWE-248: Uncaught Exception

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: yes
  • Technical Impact: partial

Additional References

• https://github.com/patriksimek/vm2/security/advisories/GHSA-hw58-p9xv-2mjh

vm2: vm2: Sandbox escape leads to Denial of Service

Additional References

• https://access.redhat.com/security/cve/CVE-2026-44001
• https://bugzilla.redhat.com/show_bug.cgi?id=2477208
• https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44001.json

References

• https://github.com/patriksimek/vm2/security/advisories/GHSA-hw58-p9xv-2mjh

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