CVE-2026-44001

⚠️ high

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.

CVSS Score

8.6

High

EPSS Score

0.1

Exploit Probability

Published Date

2026-05-13

First Seen: 2026-05-17

📊 Relative Risk Intelligence

This CVE is High Risk - more severe than 80.5% of all 328,009 vulnerabilities in our database.

#63,858

Top 25% most severe

Severity Percentile

🎯 CISA SSVC Assessment Updated: May 18, 2026

🔍 Exploitation Status

Poc

Proof-of-concept available

⚙️ Automatable

YES

Can be exploited automatically

💥 Technical Impact

Partial

Limited system impact

SSVC data provided by CISA

Last Modified 2026-05-18

Source NVD 🔗

CVSS Vector 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

CWE IDs (Weakness Types)

CWE-248

📦 Affected Products 1

Vendor	Product	Status	Affected Versions
vm2_project	vm2	Affected	< 3.11.0

🔗 References 1

https://github.com/patriksimek/vm2/security/advisori...

Exploit Vendor Advisory

🔗 Related CVEs 6

CVE ID	Severity	CVSS	EPSS	Summary	Published
CVE-2026-43997	⛔ critical	10.0	0.1	vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, it is possible to obtain the host Object. There are vario...	2026-05-13
CVE-2026-43998	⚠️ high	8.5	0.3	vm2 is an open source vm/sandbox for Node.js. In 3.10.5, NodeVM's require.root path restriction can be bypassed using fi...	2026-05-13
CVE-2026-43999	⛔ critical	9.9	0.2	vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, NodeVM's builtin allowlist can be bypassed when the modul...	2026-05-13
CVE-2026-44000	🔶 medium	6.5	0.0	vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, a sandbox boundary violation in vm2 allows host object id...	2026-05-13
CVE-2026-44002	🔶 medium	5.8	0.0	vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, vm2's CallSite wrapper class (intended as a safe wrapper ...	2026-05-13
CVE-2026-44003	🔶 medium	5.3	0.0	vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, vm2's code transformer has a performance optimization tha...	2026-05-13

These CVEs affect the same products