Sandbox escape RCE in vm2 (CVSS 10) affects many Node.js apps and platforms that embed vm2; widespread impact on systems running untrusted code.
CVE-2026-92937
vm2 sandbox escape allowing host Node.js remote code execution via crafted Promise.call/apply
do firstUpgrade to a fixed release: 3.11.7.
Is CVE-2026-92937 being exploited?
Not confirmed. CVE-2026-92937 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 1.0% probability of exploitation in the next 30 days.
How severe is CVE-2026-92937?
CVE-2026-92937 is rated Critical with a CVSS score of 10.0. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-92937?
Yes. A fix has been recorded for CVE-2026-92937. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-92937 affect?
CVE-2026-92937 affects vm2 3.11.6, Node.js applications embedding vm2, services exposing host Promises to sandboxes, npm packages using vm2. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-92937?
Upgrade vm2 to 3.11.7 immediately and audit exposed host Promises
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Sandbox escape yields full RCE in host Node.js process; attacker can run arbitrary commands and access host objects (e.g., spawn child_process).
Immediate action required
- affected>= 3.11.6 and < 3.11.7
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.
cisa ssvc
- exploitation
- poc
- automatable
- yes
- technical impact
- total
Assessed by CISA 18 Sept 2026 (SSVC 2.0.3).
timeline
- 17 Sept 2026Published
- 18 Sept 2026CISA SSVC assessment: exploitation poc · 1 day later
- 18 Sept 2026CVE record last updated · same day later
- 19 Sept 2026Analysed by vulneraibility.com · same day later
also known as
- Advisorygithub.com /patriksimek/vm2/security/advisories/GHSA-647f-g98j-qq25
- Advisoryvulncheck.com /advisories/vm2-3.11.6-remote-code-execution-via-promise-call-apply
sources
- CVE List (CVE.org): description, affected versions, references; CVE Terms of Use
- NVD: CVSS and CPE data
- CISA Vulnrichment (ADP): SSVC decision points
- FIRST EPSS: exploit probability and percentile
- OSV: advisory aliases and downstream package versions
- Summary, impact and triage tags: written by our AI analysis pipeline from the sources above. Check them against the sources.