Cyber Resilience

CVE-2026-44001

HighPublic PoCUpdated

Published: 13 May 2026

Published
13 May 2026
Modified
30 June 2026
KEV Added
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Patch
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CVSS Score v3.1 8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
EPSS Score 0.0045 35.9th percentile
Risk Priority 55 floored blend · peak EPSS

Summary

CVE-2026-44001 is a high-severity Uncaught Exception (CWE-248) vulnerability in Vm2 Project Vm2. Its CVSS base score is 8.6 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Application or System Exploitation (T1499.004); ranked at the 35.9th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

OWASP Top 10 for Web (2025)

A10:2025 Mishandling of Exceptional Conditions

EU & UK References

Vulnerability details

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…

more

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.

CWE(s)
CWE-248

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1499.004 Application or System Exploitation Impact
Adversaries may exploit software vulnerabilities that can cause an application or system to crash and deny availability to users.
attack.mitre.org →
Why these techniques?

Sandbox escape enables host process crash via unhandled exception, directly mapping to application exploitation for DoS.

Confidence: MEDIUM · MITRE ATT&CK Enterprise v19.0

CVEs Like This One

CVE-2026-44004Same product: Vm2 Project Vm2
CVE-2026-44005Same product: Vm2 Project Vm2
CVE-2026-44000Same product: Vm2 Project Vm2
CVE-2026-26332Same product: Vm2 Project Vm2
CVE-2026-43997Same product: Vm2 Project Vm2
CVE-2026-24118Same product: Vm2 Project Vm2
CVE-2026-44008Same product: Vm2 Project Vm2
CVE-2026-43998Same product: Vm2 Project Vm2
CVE-2026-43999Same product: Vm2 Project Vm2
CVE-2026-24781Same product: Vm2 Project Vm2

Affected Assets

vm2 project
vm2
≤ 3.11.0

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

SC-24 Fail in Known State
addresses: CWE-248

Prevents abrupt termination from uncaught exceptions by requiring a defined, preserved-state failure mode.

SI-17 Fail-safe Procedures
addresses: CWE-248

Requires pre-defined safe responses for uncaught exceptions so they do not result in undefined or insecure program termination.

References