What is CVE-2026-22709?

CVE-2026-22709 is a critical-severity vulnerability in Patriksimek Vm2, classified under Code Injection. CVSS score: 9.8/10. Published 2026-01-26.

How severe is CVE-2026-22709?

Critical severity. CVSS v3 base score is 9.8 out of 10.

RCE in Patriksimek Vm2

CVE-2026-22709

vm2 is an open source vm/sandbox for Node.js. In vm2 prior to version 3.10.2, `Promise.prototype.then` `Promise.prototype.catch` callback sanitization can be bypassed. This allows attackers to escape the sandbox and run arbitrary code. In…

Vulnerability class: RCE (Remote Code Execution)

EPSS: 0.001 (17.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Patriksimek Vm2 — versions < 3.10.2

Weakness classification (CWE)

References

https://github.com/patriksimek/vm2/security/advisories/GHSA-99p7-6v5w-7xg8 (x_refsource_CONFIRM)
https://github.com/patriksimek/vm2/commit/4b009c2d4b1131c01810c1205e641d614c322a29 (x_refsource_MISC)
https://github.com/patriksimek/vm2/releases/tag/v3.10.2 (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-22709?: CVE-2026-22709 is a critical-severity vulnerability in Patriksimek Vm2, classified under Code Injection. CVSS score: 9.8/10. Published 2026-01-26.
How severe is CVE-2026-22709?: Critical severity. CVSS v3 base score is 9.8 out of 10.