What is GHSA-37q5-qg7q-c8f4?

GHSA-37q5-qg7q-c8f4 is a security advisory published by GitHub Security Advisories with High severity. Site isolation issue in the Audio/Video: Web Codecs component. This vulnerability was fixed in...

Which CVE IDs does GHSA-37q5-qg7q-c8f4 cover?

GHSA-37q5-qg7q-c8f4 covers the following CVE IDs: CVE-2026-74981. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-37q5-qg7q-c8f4?

GHSA-37q5-qg7q-c8f4 has a CVSS v3 base score of 8.1, published by GitHub Security Advisories.

GHSA-37q5-qg7q-c8f4HighCVSS 8.1

Site isolation issue in the Audio/Video: Web Codecs component. This vulnerability was fixed in...

Vendor

GitHub Security Advisories

Published

August 18, 2026

Last Modified

August 20, 2026

🔗 CVE IDs covered (1)

CVE-2026-74981 →

📋 Description

Site isolation issue in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 154 and Firefox ESR 153.1.

🔗 References (7)

https://nvd.nist.gov/vuln/detail/CVE-2026-74981
https://bugzilla.mozilla.org/show_bug.cgi?id=2050480
https://www.mozilla.org/security/advisories/mfsa2026-74
https://www.mozilla.org/security/advisories/mfsa2026-77
https://www.mozilla.org/security/advisories/mfsa2026-78
https://www.mozilla.org/security/advisories/mfsa2026-80
https://github.com/advisories/GHSA-37q5-qg7q-c8f4