Spoofing Issue in DOM Security Component of Firefox
CVE-2026-124912

Currently unrated

Key Information:

Vendor: Mozilla
Status: Firefox
Vendor: CVE Published:; 10 November 2026

What is CVE-2026-124912?

A spoofing vulnerability in the DOM security component of Firefox has been identified, allowing potential attackers to manipulate content. This issue was addressed in Firefox 160 and Firefox Extended Support Release (ESR) 153.7, reinforcing the browser's defenses against deceptive tactics that can compromise user integrity.