CVE-2026-92025: Use-after-free in the DOM: Navigation component
Use-after-free in the DOM: Navigation component. This vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, and Firefox ESR 153.3.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 156 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 115.41 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 140.16 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 153.3
Event History
Frequently Asked Questions
Which Firefox releases contain the fix?
The vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, and Firefox ESR 153.3.
Which products should be checked for exposure?
Mozilla Firefox and Mozilla Firefox ESR should be checked. Deployments running versions earlier than the listed fixed releases may require updating.