REDHAT-BUG-2489226: High severity Mozilla Firefox vulnerability
Sandbox escape in the DOM: Navigation component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, and Firefox ESR 115.37.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Firefoxto a version that resolves this vulnerability.Fixed in 152 - Upgrade
Upgrade
Firefox ESRto a version that resolves this vulnerability.Fixed in 140.12 - Upgrade
Upgrade
Firefox ESRto a version that resolves this vulnerability.Fixed in 115.37
Event History
Frequently Asked Questions
What is the severity of REDHAT-BUG-2489226?
The severity of REDHAT-BUG-2489226 is high, rated at 7.
How do I fix REDHAT-BUG-2489226?
To fix REDHAT-BUG-2489226, update to Firefox version 152, Firefox ESR 140.12, or Firefox ESR 115.37.
What type of vulnerability is REDHAT-BUG-2489226?
REDHAT-BUG-2489226 is a sandbox escape vulnerability in the DOM, specifically in the navigation component.
What software is affected by REDHAT-BUG-2489226?
REDHAT-BUG-2489226 affects Mozilla Firefox and its extended support releases, Firefox ESR 140.12 and Firefox ESR 115.37.
When was REDHAT-BUG-2489226 published?
REDHAT-BUG-2489226 was published on June 16, 2026.