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Critical

Prototype Pollution in vm2

  • Disclosed: 19.10.2021
  • Updated: 11.10.2026 10:22

This affects the package vm2 before 3.9.4. Prototype Pollution attack vector can lead to sandbox escape and execution of arbitrary code on the host machine.

Affected software

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PlatformPackageVulnerable versionsFixed in
npm package vm2 < 3.9.4 3.9.4

References

CVSS score 9.8/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE)
CWE-1321, CWE-915
Platform
npm
Package
vm2
Disclosed
19.10.2021
Updated
11.10.2026 10:22

Sources and licenses

OSV / GitHub Advisory Database - GHSA-rjf2-j2r6-q8gr - CC BY 4.0

Vulnerability history: vm2

All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.

All (78) in the archive
Total entries
78
First → latest
10.2021 10.2026
Without a fix
1
Exploited in attacks
0

Severity breakdown

  • Critical 51
  • High 14
  • Medium 12
  • Low 1

Disclosures per year

Severity:
  1. Prototype Pollution in vm2 this entry
    Critical · 9.8 CVE-2021-23449 < 3.9.4 3.9.4
  2. vm2 contains a sandbox escape vulnerability
    Critical · 10.0 CVE-2026-93605 < 3.12.1 3.12.1
  3. vm2: NodeVM custom resolution bypasses external path boundaries
    Critical · 10.0 CVE-2026-100721 < 3.12.2 3.12.2
  4. vm2: Host Promise rejection from an exposed constructor can terminate the vm2 host process
    High · 8.6 CVE-2026-100722 < 3.12.2 3.12.2
  5. vm2: `allowAsync: false` can be bypassed through Promise thenable assimilation in VM and NodeVM
    High · 7.1 CVE-2026-92959 < 3.11.8 3.11.8
  6. vm2: Sandbox Escape (NodeVM)
    Critical · 10.0 CVE-2026-92955 < 3.11.8 3.11.8
  7. vm2: Host-returned Promise rejection can bypass vm2's unhandled-rejection hardening and terminate the host process
    Critical · 8.6 CVE-2026-92954 >= 3.10.0, < 3.11.8 3.11.8
  8. vm2: Default VM can mutate host TypedArray and ArrayBuffer intrinsics after the host-prototype pollution fix
    Critical · 10.0 CVE-2026-92953 >= 3.11.0, < 3.11.8 3.11.8
  9. vm2 sandbox escape to host RCE via revisited host-wrapped AggregateError bypassing Error sanitization cycle short-circuit
    Critical · 9.0 CVE-2026-92934 < 3.11.8 3.11.8
  10. vm2: timeout Option Bypass via FinalizationRegistry Cleanup Callback (Unbounded Host Event-Loop Block)
    High · 7.5 CVE-2026-92942 < 3.11.7 3.11.7
  11. vm2: NodeVM `require.external` without an explicit `require.root` grants unrestricted host filesystem access and full RCE
    Critical · 10.0 CVE-2026-92946 < 3.11.7 3.11.7
  12. vm2: Sandboxed code can read and write host-realm memory via Node's shared Buffer pool
    Critical · 10.0 CVE-2026-92947 < 3.11.7 3.11.7
  13. vm2 sandbox escape via WebAssembly.compileStreaming Promise species bypass
    Critical · 10.0 CVE-2026-92956 >= 3.10.1, < 3.11.7 3.11.7
  14. vm2: NodeVM builtin allowlist bypass via node:test.run() execArgv allows sandbox escape
    Critical · 9.9 CVE-2026-92948 >= 3.9.6, < 3.11.7 3.11.7
  15. vm2 CLI provides no sandbox isolation - host-realm require() is reachable from sandboxed scripts
    High · 8.6 CVE-2026-92950 < 3.11.7 3.11.7
  16. vm2 exposes host HTTPS credentials and TLS traffic through globalAgent
    Critical · 10.0 CVE-2026-92940 >= 3.11.3, < 3.11.7 3.11.7
  17. vm2 Custom Module Resolver Can Bypass the External Package Allowlist by Loading a Colliding Host Package
    Critical · 9.9 CVE-2026-92951 < 3.11.7 3.11.7
  18. vm2: NodeVM builtin denylist bypass via fs/promises despite -fs, allowing host filesystem writes
    High · 8.5 CVE-2026-92958 < 3.11.7 3.11.7
  19. vm2: NodeVM node:-prefixed negative builtin deny bypass exposes child_process
    Critical · 9.9 CVE-2026-92957 < 3.11.7 3.11.7
  20. vm2: NodeVM nesting guard accepts array-shaped require and permits host RCE
    Critical · 9.0 CVE-2026-92935 >= 3.11.4, < 3.11.7 3.11.7
  21. vm2: GHSA-m283-3h24-438v fix bypass leads to host RCE via call/apply indirection
    Critical · 10.0 CVE-2026-92937 >= 3.11.6, < 3.11.7 3.11.7
Show more (20) Showing 21 of 65

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