GHSA-x965-fc75-jpqh: vm2 (CVE-2026-92934)

Package	Ecosystem	Affected	Fixed in
vm2	npm	<3.11.8	3.11.8

Machine-written summary

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

vm2 versions before 3.11.8 contain a sandbox escape affecting caught host-wrapped AggregateError objects that reference themselves, repeat entries in their errors list, or form mutual cycles. Sandboxed code that catches such an error, thrown by a host function the embedder exposes, can reach a live host object and run commands on the host. Upgrade to vm2 3.11.8, which contains the fix.

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
9.5	Critical	4.0	CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H	CNA (VulnCheck)

CISA KEV Not listed.
EPSS 0.0076, the 55th percentile, on 7 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.