What is GHSA-xmv6-f4v8-qgcx?

GHSA-xmv6-f4v8-qgcx is a security advisory published by GitHub Security Advisories with Medium severity. Race condition in the XPCOM component. This vulnerability was fixed in Firefox 158 and Firefox...

Which CVE IDs does GHSA-xmv6-f4v8-qgcx cover?

GHSA-xmv6-f4v8-qgcx covers the following CVE IDs: CVE-2026-109776. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-xmv6-f4v8-qgcx?

GHSA-xmv6-f4v8-qgcx has a CVSS v3 base score of 4.2, published by GitHub Security Advisories.

GHSA-xmv6-f4v8-qgcxMediumCVSS 4.2

Race condition in the XPCOM component. This vulnerability was fixed in Firefox 158 and Firefox...

Vendor

GitHub Security Advisories

Published

October 13, 2026

Last Modified

October 15, 2026

🔗 CVE IDs covered (1)

CVE-2026-109776 →

📋 Description

Race condition in the XPCOM component. This vulnerability was fixed in Firefox 158 and Firefox ESR 153.5.

🔗 References (7)

https://nvd.nist.gov/vuln/detail/CVE-2026-109776
https://bugzilla.mozilla.org/show_bug.cgi?id=2069395
https://www.mozilla.org/security/advisories/mfsa2026-106
https://www.mozilla.org/security/advisories/mfsa2026-108
https://www.mozilla.org/security/advisories/mfsa2026-109
https://www.mozilla.org/security/advisories/mfsa2026-110
https://github.com/advisories/GHSA-xmv6-f4v8-qgcx