CVE-2026-2802

Race condition in the JavaScript: GC component. This vulnerability affects Firefox < 148 and Thunderbird < 148.
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:*

History

25 Feb 2026, 15:38

Type Values Removed Values Added
First Time Mozilla
Mozilla firefox
Mozilla thunderbird
References () https://bugzilla.mozilla.org/show_bug.cgi?id=2011069 - () https://bugzilla.mozilla.org/show_bug.cgi?id=2011069 - Permissions Required
References () https://www.mozilla.org/security/advisories/mfsa2026-13/ - () https://www.mozilla.org/security/advisories/mfsa2026-13/ - Vendor Advisory
References () https://www.mozilla.org/security/advisories/mfsa2026-16/ - () https://www.mozilla.org/security/advisories/mfsa2026-16/ - Vendor Advisory
CPE cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:*

24 Feb 2026, 18:29

Type Values Removed Values Added
Summary (en) Race condition in the JavaScript: GC component. This vulnerability affects Firefox < 148. (en) Race condition in the JavaScript: GC component. This vulnerability affects Firefox < 148 and Thunderbird < 148.
References
  • () https://www.mozilla.org/security/advisories/mfsa2026-16/ -

24 Feb 2026, 17:29

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 4.2
CWE CWE-362

24 Feb 2026, 14:16

Type Values Removed Values Added
New CVE

Information

Published : 2026-02-24 14:16

Updated : 2026-02-25 15:38


NVD link : CVE-2026-2802

Mitre link : CVE-2026-2802

CVE.ORG link : CVE-2026-2802


JSON object : View

Products Affected

mozilla

  • thunderbird
  • firefox
CWE
CWE-362

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')