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TI-2026-21288 Aliases CVE-2026-26332GHSA-55hx-c926-fr95

vm2: Sandbox Escape

Priority HIGH 82CWE-693Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass, Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 1 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-693 and CWE-94.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.0071 53rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial vm2 (patriksimek): 3.11.0vm2 (npm): 3.11.0Red Hat: 1 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
patriksimekvm2before 3.11.03.11.0Patch availableCNA
—vm2 (npm)before 3.11.03.11.0Patch availableGHSA-55hx-c926-fr95
  • vm2 Vendorpatriksimek Affected before 3.11.0 Fixed in 3.11.0 Patch available CNA
  • vm2 (npm) Vendor— Affected before 3.11.0 Fixed in 3.11.0 Patch available GHSA-55hx-c926-fr95

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:vm2_project:vm2:*:*:*:*:*:node.js:*:*before 3.11.0Vulnerablepatriksimek
  • cpe:2.3:a:vm2_project:vm2:*:*:*:*:*:node.js:*:* Versions before 3.11.0 Vulnerable ·patriksimek

Remediation

  • Fix · CNA vm2 (patriksimek) Fixed in 3.11.0
  • Fix · GHSA-55hx-c926-fr95 vm2 (npm) Fixed in 3.11.0 Advisory →

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Self-service automation portal 2AffectedNo fix yet
Not affected: 1 product
  • Red Hat Developer Hub 1

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-26332
  2. 2026-10-03 Alias added: GHSA-55hx-c926-fr95
  3. 2026-10-27 Affected versions changed · Red Hat
  4. 2026-11-04 Affected versions changed · GHSA-55hx-c926-fr95
  5. 2026-11-04 Weakness changed · GHSA-55hx-c926-fr95
  6. 2026-11-04 3 new references · GHSA-55hx-c926-fr95

References

  • TI-2023-14382 Sandbox Escape in vm2 CVSS 3.1CRITICAL 10.0
  • TI-2023-13478 vm2 Sandbox Escape vulnerability CVSS 3.1CRITICAL 10.0
  • TI-2026-33200 vm2: Sandbox Breakout Using Async Generator CVSS 3.1CRITICAL 9.8
  • TI-2026-32052 vm2: Sandbox Breakout Through Null Proto Exception CVSS 3.1CRITICAL 9.8
  • TI-2026-32051 vm2 has sandbox breakout via `neutralizeArraySpeciesBatch` CVSS 3.1CRITICAL 9.8
  • TI-2026-32049 vm2: Sandbox Escape CVSS 3.1CRITICAL 10.0
See all 31 →

Sources