by Kastro
Paper/Archive/CVE-2026-22709

CVE-2026-22709

patriksimek vm2 — vm2 has a Sandbox Escape

EPSS 1%CVSS 10.0
critical.is priorityof 100
44
CVSS 10.0 (NVD)10.0 / 10 × 3030.0Not in CISA KEV+300.0EPSS percentile 69.8.698 × 2014.0No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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 lib/setup-sandbox.js, the callback function of `localPromise.prototype.then` is sanitized, but `globalPromise.prototype.then` is not sanitized. The return value of async functions is `globalPromise` object. Version 3.10.2 fixes the issue.

Affected

ProductAffectedFixed inSource
vm2< 3.10.2–CNA

Scores by source

NVD10.0CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
GitHub_M (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refgithub.com/patriksimek/vm2/security/advisories/GHSA-99p7-6v5w-7xg8refgithub.com/patriksimek/vm2/commit/4b009c2d4b1131c01810c1205e641d614c322a29refgithub.com/patriksimek/vm2/releases/tag/v3.10.2