---
title: "CVE-2026-26332: VM2 Has a Sandbox Escape Issue via SuppressedError"
url: https://erroneo.us/security/cve/CVE-2026-26332/
description: "CVE-2026-26332 (vm2 (npm)): vm2 is an open source vm/sandbox for Node.js. Prior to version 3.11.0, SuppressedError allows attackers to escape the sandbox…"
type: vulnerability-record
section: "Security Digest"
date_published: 2026-05-04
date_modified: 2026-07-15
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2026-26332"
kev: false
cvss: 9.8
epss: 0.00741
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2026-26332: VM2 Has a Sandbox Escape Issue via SuppressedError

**Signal:** Critical and remotely reachable. No known exploitation yet, but it is network-reachable without credentials. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- Not in CISA KEV , but CISA’s SSVC assessment records a public proof-of-concept, so attack code exists.
- EPSS 0.7% , percentile 54: FIRST’s model estimates a 0.7% chance of exploitation activity in the next 30 days, higher than 54% of all scored CVEs (moderate). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Only applies if your dependency tree includes vm2 (npm) <= 3.10.4, fixed in 3.11.0 . Check your lockfile, including transitive dependencies.

## What it is

vm2 is an open source vm/sandbox for Node.js. Prior to version 3.11.0, SuppressedError allows attackers to escape the sandbox and run arbitrary code. This issue has been patched in version 3.11.0.

## Affected packages

- npm `vm2` <= 3.10.4 → fixed: 3.11.0

## Affected products (CVE record)

- patriksimek vm2: < 3.11.0

## Severity

- GitHub_M CVSS 3.1: 9.8 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`
- redhat-SADP CVSS 3.1: 9.1 `CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H`
- GitHub CVSS 3.1: 9.8 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation poc , automatable yes , technical impact total .
- FIRST EPSS (model of 2026-10-21): 0.74% probability of exploitation activity in the next 30 days; percentile 54.

## Sources

- [GitHub Advisory GHSA-55hx-c926-fr95](https://github.com/advisories/GHSA-55hx-c926-fr95)
- [CVE.org record CVE-2026-26332](https://www.cve.org/CVERecord?id=CVE-2026-26332)
- [NVD entry CVE-2026-26332](https://nvd.nist.gov/vuln/detail/CVE-2026-26332)
- [github.com](https://github.com/patriksimek/vm2/security/advisories/GHSA-55hx-c926-fr95)
- [github.com](https://github.com/patriksimek/vm2/releases/tag/v3.11.0)
- [access.redhat.com](https://access.redhat.com/security/cve/CVE-2026-26332)
- [RHBZ#2466508](https://bugzilla.redhat.com/show_bug.cgi?id=2466508)
- [security.access.redhat.com](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-26332.json)
- [github.com](https://github.com/patriksimek/vm2/commit/119fd0aa1e4c27b08cf37946b2dafa99e2c754f0)
- [github.com](https://github.com/patriksimek/vm2/commit/4cb82cc94d9bb6c9a918b45f8c6790c32a5e913f)
- [github.com](https://github.com/patriksimek/vm2/commit/7395c3a4b01d302e55271c87dbeb44d6b83b81ca)
- [github.com](https://github.com/patriksimek/vm2/commit/792e16d56ee429ab19e284ed9c545f5e4694fb7d)
- [github.com](https://github.com/patriksimek/vm2/commit/d715dd88c5aec5bbb4dce03ddf7c3eb3791d0338)

---
Source page: https://erroneo.us/security/cve/CVE-2026-26332/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt