What is CVE-2026-47209?

CVE-2026-47209 is a high-severity vulnerability in Patriksimek Vm2, classified under Protection Mechanism Failure. CVSS score: 8.6/10. Published 2026-06-12.

How severe is CVE-2026-47209?

High severity. CVSS v3 base score is 8.6 out of 10.

Vulnerability in Patriksimek Vm2

CVE-2026-47209

vm2 is an open source vm/sandbox for Node.js. Prior to version 3.11.4, the BaseHandler.set trap in bridge.js (line 1231) ignores the receiver parameter and unconditionally writes to the host target object. Per the Proxy set trap specificat…

EPSS: 0.003 (20.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N.

Affected products

Patriksimek Vm2 — versions < 3.11.4

Weakness classification (CWE)

CWE-693 — Protection Mechanism Failure

References

security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-47209?: CVE-2026-47209 is a high-severity vulnerability in Patriksimek Vm2, classified under Protection Mechanism Failure. CVSS score: 8.6/10. Published 2026-06-12.
How severe is CVE-2026-47209?: High severity. CVSS v3 base score is 8.6 out of 10.