What is GHSA-wq9w-h8xr-cwgg?

GHSA-wq9w-h8xr-cwgg is a security advisory published by GitHub Security Advisories with High severity. Use-after-free in the Layout: Positioned component. This vulnerability was fixed in Firefox 160.

Which CVE IDs does GHSA-wq9w-h8xr-cwgg cover?

GHSA-wq9w-h8xr-cwgg covers the following CVE IDs: CVE-2026-124878. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-wq9w-h8xr-cwgg?

GHSA-wq9w-h8xr-cwgg has a CVSS v3 base score of 8.8, published by GitHub Security Advisories.

GHSA-wq9w-h8xr-cwggHighCVSS 8.8

Use-after-free in the Layout: Positioned component. This vulnerability was fixed in Firefox 160.

Vendor

GitHub Security Advisories

Published

November 10, 2026

Last Modified

November 10, 2026

🔗 CVE IDs covered (1)

CVE-2026-124878 →

📋 Description

Use-after-free in the Layout: Positioned component. This vulnerability was fixed in Firefox 160.

🔗 References (5)

https://nvd.nist.gov/vuln/detail/CVE-2026-124878
https://bugzilla.mozilla.org/show_bug.cgi?id=2081940
https://www.mozilla.org/security/advisories/mfsa2026-125
https://www.mozilla.org/security/advisories/mfsa2026-128
https://github.com/advisories/GHSA-wq9w-h8xr-cwgg