Race Condition Vulnerability in Firefox by Mozilla

CVE-2026-92042

What is CVE-2026-92042?

A race condition vulnerability has been identified in the Content Processes component of the DOM in Firefox. This flaw allows for potential unpredictable behavior, which could be exploited to impact the stability and security of the browser. Users of Firefox versions prior to 156 and Firefox ESR prior to 153.3 should ensure they update to the latest versions to mitigate exposure to this issue.

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