What is GHSA-ghm9-chqr-fv8j?

GHSA-ghm9-chqr-fv8j is a security advisory published by GitHub Security Advisories with High severity. Use-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox...

Which CVE IDs does GHSA-ghm9-chqr-fv8j cover?

GHSA-ghm9-chqr-fv8j covers the following CVE IDs: CVE-2026-92040. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-ghm9-chqr-fv8j?

GHSA-ghm9-chqr-fv8j has a CVSS v3 base score of 8.8, published by GitHub Security Advisories.

GHSA-ghm9-chqr-fv8jHighCVSS 8.8

Use-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox...

Vendor

GitHub Security Advisories

Published

September 15, 2026

Last Modified

September 20, 2026

🔗 CVE IDs covered (1)

CVE-2026-92040 →

📋 Description

Use-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 156.

🔗 References (5)

https://nvd.nist.gov/vuln/detail/CVE-2026-92040
https://bugzilla.mozilla.org/show_bug.cgi?id=2024248
https://www.mozilla.org/security/advisories/mfsa2026-90
https://www.mozilla.org/security/advisories/mfsa2026-94
https://github.com/advisories/GHSA-ghm9-chqr-fv8j