CVE-2026-26956

Summary

vm2 is an open source vm/sandbox for Node.js. In version 3.10.4, vm2 is vulnerable to full sandbox escape with arbitrary code execution. Attacker code inside VM.run() obtains host process object and runs host commands with zero host cooperation. This issue has been patched in version 3.10.5.

Affected Software

Weaknesses

• CWE-693: CWE-693: Protection Mechanism Failure

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: yes
  • Technical Impact: total

Additional References

• https://github.com/patriksimek/vm2/security/advisories/GHSA-ffh4-j6h5-pg66

vm2: Node.js: vm2: Arbitrary code execution via sandbox escape

Additional References

• https://access.redhat.com/security/cve/CVE-2026-26956
• https://bugzilla.redhat.com/show_bug.cgi?id=2466548
• https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-26956.json

References

• https://github.com/patriksimek/vm2/security/advisories/GHSA-ffh4-j6h5-pg66
• https://github.com/patriksimek/vm2/releases/tag/v3.10.5

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