exploit · Thu 01 Oct 2026 · 15:28 UTC
GHSA-27g9-p43v-cw3v: vm2 sandbox escape on Node.js 26 through a stale PromiseThenLookupChain protector
Filed UTCSource GTH ↗
Reporter - Name or handle: [YMsora] - Report date: 2026-08-14 ## Summary The latest published vm2 release, 3.11.5, and the current main branch are vulnerable to a sandbox escape when used on Node.js 26. An ordinary fulfilled Promise created by an async function can retain an attacker-controlled constructor[Symbol.species] across Promise.prototype.finally(). vm2 installs wrappers on the intrinsic Promise.prototype.then and catch methods. …
Signals
as the pipeline stamped them- High
- Critical vulnerability — CVSS 9.8
- What to do
- Critical severity — schedule an urgent patch.
CVE
KEV from CISA · EPSS from FIRST| Id | KEV | EPSS | Reference |
|---|---|---|---|
| CVE-2026-92944 | — | 0.84% | NVD ↗ |
Get the next one first.
Every dispatch goes to Telegram and RSS the moment it is published, and the whole wire is a keyless JSON API.
Check your stack
Paste what you run: the CVEs exploited in the wild against it, and who is cited as exploiting them, with the report.
Stack checkNo key. No signup.