CVE-2026-92019: Mitigation bypass in the Remote Settings Client component
Published Sep 15, 2026
·Updated
Mitigation bypass in the Remote Settings Client component. This vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, and Firefox ESR 153.3.
Affected Software
1 affected component
Mozilla Firefox<156, <115.41, <140.16, <153.3
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Firefox / Firefox ESR (Remote Settings Client component)to a version that resolves this vulnerability.Fixed in 156 - Upgrade
Upgrade
Firefox ESR (Remote Settings Client component)to a version that resolves this vulnerability.Fixed in 115.41 - Upgrade
Upgrade
Firefox ESR (Remote Settings Client component)to a version that resolves this vulnerability.Fixed in 140.16 - Upgrade
Upgrade
Firefox ESR (Remote Settings Client component)to a version that resolves this vulnerability.Fixed in 153.3
Event History
Sep 15, 2026
CVE Published
via MITRE·12:33 PM
Data Sourced
via MITRE·12:33 PM
Description
Frequently Asked Questions
1
Which Firefox releases contain the fix?
The issue was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, and Firefox ESR 153.3.