What is GHSA-5wxj-pmj7-6wvf?

GHSA-5wxj-pmj7-6wvf is a security advisory published by GitHub Security Advisories with Critical severity. Sandbox escape due to use-after-free in the Audio/Video: cubeb component. This vulnerability was...

Which CVE IDs does GHSA-5wxj-pmj7-6wvf cover?

GHSA-5wxj-pmj7-6wvf covers the following CVE IDs: CVE-2026-124861. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-5wxj-pmj7-6wvf?

GHSA-5wxj-pmj7-6wvf has a CVSS v3 base score of 9.6, published by GitHub Security Advisories.

GHSA-5wxj-pmj7-6wvfCriticalCVSS 9.6

Sandbox escape due to use-after-free in the Audio/Video: cubeb component. This vulnerability was...

Vendor

GitHub Security Advisories

Published

November 10, 2026

Last Modified

November 10, 2026

🔗 CVE IDs covered (1)

CVE-2026-124861 →

📋 Description

Sandbox escape due to use-after-free in the Audio/Video: cubeb component. This vulnerability was fixed in Firefox 160, Firefox ESR 115.45, and Firefox ESR 153.7.

🔗 References (8)

https://nvd.nist.gov/vuln/detail/CVE-2026-124861
https://bugzilla.mozilla.org/show_bug.cgi?id=2074210
https://www.mozilla.org/security/advisories/mfsa2026-125
https://www.mozilla.org/security/advisories/mfsa2026-126
https://www.mozilla.org/security/advisories/mfsa2026-127
https://www.mozilla.org/security/advisories/mfsa2026-128
https://www.mozilla.org/security/advisories/mfsa2026-129
https://github.com/advisories/GHSA-5wxj-pmj7-6wvf