CVE-2026-24781: vm2: Sandbox Breakout Through Inspect

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.2% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2026-05-04 · updated 2026-10-26
Weakness: CWE-94

Description

vm2 is an open source vm/sandbox for Node.js. Prior to version 3.11.0, VM2 suffers from a sandbox breakout vulnerability through the inspect function. This allows attackers to write code which can escape from the VM2 sandbox and execute arbitrary commands on the host system. This issue has been patched in version 3.11.0.

Affected products

patriksimek vm2: before 3.11.0 — fixed in 3.11.0

How to fix

Upgrade to a fixed version: patriksimek vm2 3.11.0. Check the vendor advisory for mitigations.

References

https://github.com/patriksimek/vm2/commit/8d30d93213c1898b3e035298b89a814970dd1189
https://github.com/patriksimek/vm2/commit/bdd3d15e57bc4ec5e70365cd79f7cb0256e5f88c
https://github.com/patriksimek/vm2/commit/fd266d084e0a3322d0f71ba2a8dc4c96cd030228
https://github.com/patriksimek/vm2/releases/tag/v3.11.0
https://github.com/patriksimek/vm2/security/advisories/GHSA-v37h-5mfm-c47c
https://access.redhat.com/errata/RHSA-2026:26234
https://access.redhat.com/errata/RHSA-2026:36754
https://access.redhat.com/security/cve/CVE-2026-24781
https://bugzilla.redhat.com/show_bug.cgi?id=2466531
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-24781.json

Get alerted when CVE-2026-24781 or the next vulnerability affects your stack