Duplicate Advisory: vm2: NodeVM node:-prefixed negative builtin deny bypass exposes child_process
## Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-8686-vhfx-7r3j. This link is maintained to preserve external references. ## Original Description vm2 through 3.11.6 does not normalize `node:`-prefixed builtin specifiers when evaluating user-supplied negative (deny) entries in a NodeVM wildcard require policy. Although NodeVM strips the `node:` prefix during require() resolution, negative wildcard entries are matched by exact string comparison against the canonical builtin names, so a policy such as `new NodeVM({ require: { builtin: ['*', '-node:child_process'] } })` fails to deny the canonical `child_process` module. Sandboxed code can therefore obtain the host `child_process` builtin via `require('child_process')` or `require('node:child_process')`, gaining references to process-spawning APIs such as execSync and spawn, which is equivalent to host command-execution capability for untrusted sandbox code. Fixed in vm2 3.11.7. (Suggested title: "vm2 before 3.11.7: NodeVM builtin deny-list bypass via node:-prefixed specifiers exposes child_process")
GHSA-28q4-xrqh-9479
Primary source · Revision 1 · Withdrawn
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:GHSA-28q4-xrqh-9479
vm2
Source reference: /affected/0/package/name
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "SEMVER",
"events": [
{
"introduced": "0"
},
{
"last_affected": "3.11.6"
}
]
}
],
"package": {
"name": "vm2",
"purl": "pkg:npm/vm2",
"ecosystem": "npm"
},
"database_specific": {
"source": "https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/09/GHSA-28q4-xrqh-9479/GHSA-28q4-xrqh-9479.json"
}
}
]Publisher severity
critical
Source reference: /database_specific/severity
- Event
- #61263 · Revision 1
- Added to Heist Feed
- Publisher date