vulnerability · Mon 05 Oct 2026 · 22:38 UTC
GHSA-x965-fc75-jpqh: vm2 sandbox escape to host RCE via revisited host-wrapped AggregateError bypassing Error sanitization cycle
Filed UTCSource GTH ↗
vm2 3.11.6 (this fork's latest release) contains an incomplete-fix bypass of the Error.cause host-reference sanitization added in GHSA-m283-3h24-438v (commit 7e3faaf). Sandbox code that catches a host-wrapped AggregateError which is *revisited within a single handleException traversal* (self-cycle, mutual-cycle, or the same host aggregate referenced twice in errors[]) receives a live, unsanitized host proxy inside the "sanitized" errors[], yielding full host RCE on the throw channel that the fix and Defense Invariant #3 explicitly promise to sanitize. …
Signals
as the pipeline stamped them- High
- Critical vulnerability — CVSS 9
- What to do
- Critical severity — schedule an urgent patch.
CVE
KEV from CISA · EPSS from FIRST| Id | KEV | EPSS | Reference |
|---|---|---|---|
| CVE-2026-92934 | — | 0.76% | NVD ↗ |
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