vm2 before 3.11.7 NodeVM Builtin Deny-List Bypass via node: Prefix
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.
CVE-2026-92957
Primary source · Revision 2
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-92957
vm2
Source reference: /containers/cna/affected/0/product
- 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.
[
{
"vendor": "patriksimek",
"product": "vm2",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "3.11.7",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "3.11.7",
"versionType": "semver"
}
],
"packageURL": "pkg:npm/vm2",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-92957
Source reference:
/cveMetadata/cveId
Publisher severity
critical
Source reference: /containers/cna/metrics
- Event
- #61258 · Revision 2
- Added to Heist Feed
- Publisher date