Misuse of `Reference` and other transferable APIs may lead to access to nodejs isolate

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

• CISA KEV Not listed.
• EPSS 0.0072, the 54th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the GitHub Advisory Database, published 6 Apr 2021. New records show when each source confirmed them.

Sources

• GitHub Advisory Database: GHSA-mmhj-4w6j-76h7
• OSV: GHSA-mmhj-4w6j-76h7
• github.com/laverdet/isolated-vm/security/advisories/GHSA-mmhj-4w6j-76h7
• nvd.nist.gov/vuln/detail/CVE-2021-21413
• github.com/laverdet/isolated-vm/commit/2646e6c1558bac66285daeab54c7d490ed332b15
• github.com/laverdet/isolated-vm/commit/27151bfecc260e96714443613880e3b2e6596704
• github.com/laverdet/isolated-vm/blob/main/CHANGELOG.md#v400

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.