GHSA-wjwh-qqvp-g4p4: vm2 (CVE-2026-92956)

Package	Ecosystem	Affected	Fixed in
vm2	npm	>=3.10.1, <3.11.7	3.11.7

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

GHSA-wjwh-qqvp-g4p4 affects the npm package vm2 in versions 3.10.1 up to but not including 3.11.7. The source reports a sandbox escape reachable from a default VM on Node.js 26 through WebAssembly.compileStreaming and instantiateStreaming, which can expose the host process object to sandbox code. An attacker would need to supply JavaScript to a vm2 sandbox running on Node 26, with no special configuration required, and could then obtain host Node.js capabilities. The fix is to upgrade vm2 to 3.11.7.

Written 31 Oct 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
10.0	Critical	4.0	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H	CNA (VulnCheck)

CISA KEV Not listed.
EPSS 0.0051, the 43rd percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

31 Oct 2026, 13:34 UTC First seen by agentprime
31 Oct 2026, 13:34 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.