What is GHSA-r946-vv6g-44hh?

GHSA-r946-vv6g-44hh is a security advisory published by GitHub Security Advisories with Medium severity. JIT miscompilation in the JavaScript: WebAssembly component. This vulnerability was fixed in...

Which CVE IDs does GHSA-r946-vv6g-44hh cover?

GHSA-r946-vv6g-44hh covers the following CVE IDs: CVE-2026-12321. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-r946-vv6g-44hh?

GHSA-r946-vv6g-44hh has a CVSS v3 base score of 5.4, published by GitHub Security Advisories.

GHSA-r946-vv6g-44hhMediumCVSS 5.4

JIT miscompilation in the JavaScript: WebAssembly component. This vulnerability was fixed in...

Vendor

GitHub Security Advisories

Published

June 16, 2026

Last Modified

June 16, 2026

🔗 CVE IDs covered (1)

CVE-2026-12321 →

📋 Description

JIT miscompilation in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 152.

🔗 References (5)

https://nvd.nist.gov/vuln/detail/CVE-2026-12321
https://bugzilla.mozilla.org/show_bug.cgi?id=2032943
https://www.mozilla.org/security/advisories/mfsa2026-57
https://www.mozilla.org/security/advisories/mfsa2026-60
https://github.com/advisories/GHSA-r946-vv6g-44hh