REDHAT-BUG-2571076: Use After Free
Published Nov 10, 2026
·Updated
Use-after-free in the JavaScript: GC component. This vulnerability was fixed in Firefox 160, Firefox ESR 153.7, and Thunderbird 160.
Affected Software
0 affected components
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Firefoxto a version that resolves this vulnerability.Fixed in 160 - Upgrade
Upgrade
Firefox ESRto a version that resolves this vulnerability.Fixed in 153.7 - Upgrade
Upgrade
Thunderbirdto a version that resolves this vulnerability.Fixed in 160
Event History
Nov 10, 2026
Data Sourced
via Red Hat·08:39 PM
DescriptionSeverityAffected Software
Frequently Asked Questions
1
Which product versions contain the fix?
The issue was fixed in Firefox 160, Firefox ESR 153.7, and Thunderbird 160.
2
What component is affected?
The vulnerability affects the JavaScript garbage collection component and is classified as a use-after-free issue.