CVE-2026-92042: Race condition in the DOM: Content Processes component
Published Sep 15, 2026
·Updated
Race condition in the DOM: Content Processes component. This vulnerability was fixed in Firefox 156 and Firefox ESR 153.3.
Affected Software
2 affected components
Mozilla Firefox<156, >0<=155
Mozilla Firefox ESR<153.3, >0<=153.2
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Firefox (DOM Content Processes component)to a version that resolves this vulnerability.Fixed in 156 - Upgrade
Upgrade
Firefox ESR (DOM Content Processes component)to a version that resolves this vulnerability.Fixed in 153.3
Event History
Sep 15, 2026
CVE Published
via MITRE·12:34 PM
Data Sourced
via MITRE·12:34 PM
Description
Frequently Asked Questions
1
Which Firefox releases contain the fix?
The vulnerability was fixed in Firefox 156 and Firefox ESR 153.3.