What is GHSA-q45r-899q-qwvr?

GHSA-q45r-899q-qwvr is a security advisory published by GitHub Security Advisories with Critical severity. Invalid pointer in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox...

Which CVE IDs does GHSA-q45r-899q-qwvr cover?

GHSA-q45r-899q-qwvr covers the following CVE IDs: CVE-2026-100788. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-q45r-899q-qwvr?

GHSA-q45r-899q-qwvr has a CVSS v3 base score of 9.8, published by GitHub Security Advisories.

GHSA-q45r-899q-qwvrCriticalCVSS 9.8

Invalid pointer in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox...

Vendor

GitHub Security Advisories

Published

September 29, 2026

Last Modified

October 1, 2026

🔗 CVE IDs covered (1)

CVE-2026-100788 →

📋 Description

Invalid pointer in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox ESR 153.4, Firefox 157, and Firefox ESR 140.17.

🔗 References (9)

https://nvd.nist.gov/vuln/detail/CVE-2026-100788
https://bugzilla.mozilla.org/show_bug.cgi?id=2072413
https://www.mozilla.org/security/advisories/mfsa2026-100
https://www.mozilla.org/security/advisories/mfsa2026-97
https://www.mozilla.org/security/advisories/mfsa2026-99
https://www.mozilla.org/security/advisories/mfsa2026-101
https://www.mozilla.org/security/advisories/mfsa2026-102
https://www.mozilla.org/security/advisories/mfsa2026-103
https://github.com/advisories/GHSA-q45r-899q-qwvr