CVE-2026-2802: Vulnerability in Mozilla Firefox
Race condition in the JavaScript: GC component. This vulnerability was fixed in Firefox 148 and Thunderbird 148.
AI Analysis
Technical Summary
This vulnerability involves a race condition in the JavaScript GC component of Mozilla Firefox, identified as CVE-2026-2802. The issue was reported by Gary Kwong and is tracked under Bug 2011069. It has a CVSS 3.1 base score of 4.2, indicating a medium severity with network attack vector, high attack complexity, no privileges required, and user interaction required. The impact includes limited confidentiality and integrity loss without availability impact. Mozilla fixed this vulnerability in Firefox 148 and Thunderbird 148. No known exploits are reported in the wild. The vendor advisory explicitly states the vulnerability is addressed in the official update.
Potential Impact
The vulnerability could allow an attacker to cause a race condition in the JavaScript GC component, potentially leading to limited confidentiality and integrity impacts. There is no impact on availability. No known active exploitation has been reported. The risk is mitigated by applying the official fix.
Mitigation Recommendations
Mozilla has released an official fix for this vulnerability in Firefox 148 and Thunderbird 148. Users and administrators should update to these versions or later to remediate the issue. No additional mitigation actions are required beyond applying the official update.
CVE-2026-2802: Vulnerability in Mozilla Firefox
Description
Race condition in the JavaScript: GC component. This vulnerability was fixed in Firefox 148 and Thunderbird 148.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a race condition in the JavaScript GC component of Mozilla Firefox, identified as CVE-2026-2802. The issue was reported by Gary Kwong and is tracked under Bug 2011069. It has a CVSS 3.1 base score of 4.2, indicating a medium severity with network attack vector, high attack complexity, no privileges required, and user interaction required. The impact includes limited confidentiality and integrity loss without availability impact. Mozilla fixed this vulnerability in Firefox 148 and Thunderbird 148. No known exploits are reported in the wild. The vendor advisory explicitly states the vulnerability is addressed in the official update.
Potential Impact
The vulnerability could allow an attacker to cause a race condition in the JavaScript GC component, potentially leading to limited confidentiality and integrity impacts. There is no impact on availability. No known active exploitation has been reported. The risk is mitigated by applying the official fix.
Mitigation Recommendations
Mozilla has released an official fix for this vulnerability in Firefox 148 and Thunderbird 148. Users and administrators should update to these versions or later to remediate the issue. No additional mitigation actions are required beyond applying the official update.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mozilla
- Date Reserved
- 2026-02-19T15:06:56.714Z
- Cvss Version
- null
- State
- PUBLISHED
Threat ID: 699daf71be58cf853bdde278
Added to database: 2/24/2026, 2:02:25 PM
Last enriched: 4/14/2026, 12:06:48 PM
Last updated: 5/24/2026, 8:21:05 PM
Views: 90
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