What is GHSA-j66w-mx5p-j2h7?

GHSA-j66w-mx5p-j2h7 is a security advisory published by GitHub Security Advisories with Critical severity. Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability...

Which CVE IDs does GHSA-j66w-mx5p-j2h7 cover?

GHSA-j66w-mx5p-j2h7 covers the following CVE IDs: CVE-2026-100800. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-j66w-mx5p-j2h7?

GHSA-j66w-mx5p-j2h7 has a CVSS v3 base score of 9.6, published by GitHub Security Advisories.

GHSA-j66w-mx5p-j2h7CriticalCVSS 9.6

Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability...

Vendor

GitHub Security Advisories

Published

September 29, 2026

Last Modified

September 30, 2026

🔗 CVE IDs covered (1)

CVE-2026-100800 →

📋 Description

Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox ESR 153.4 and Firefox 157.

🔗 References (7)

https://nvd.nist.gov/vuln/detail/CVE-2026-100800
https://bugzilla.mozilla.org/show_bug.cgi?id=2056767
https://www.mozilla.org/security/advisories/mfsa2026-100
https://www.mozilla.org/security/advisories/mfsa2026-97
https://www.mozilla.org/security/advisories/mfsa2026-101
https://www.mozilla.org/security/advisories/mfsa2026-103
https://github.com/advisories/GHSA-j66w-mx5p-j2h7