CVE-2026-47698
vm2 sandbox RCE via prototype indirection bypass allowing host command execution
Is CVE-2026-47698 being exploited?
Not confirmed. CVE-2026-47698 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 0.70% probability of exploitation in the next 30 days.
How severe is CVE-2026-47698?
CVE-2026-47698 is rated Critical with a CVSS score of 9.8. 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-2026-47698?
Yes. A fix has been recorded for CVE-2026-47698. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-47698 affect?
CVE-2026-47698 affects vm2 versions prior to 3.11.6, Node.js applications using vm2 sandbox. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-47698?
Upgrade vm2 to 3.11.6+, redeploy sandboxes, isolate/block untrusted code until patched
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote code execution: sandboxed JS can reach e.constructor.constructor to run arbitrary host commands from within vm2.
Immediate action required
- affected< 3.11.6
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.