cbcvebase.
CVE-2026-2795
published 2026-02-24

CVE-2026-2795: Use-after-free in the JavaScript: GC component. This vulnerability was fixed in Firefox 148 and Thunderbird 148.

critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
Use-after-free in the JavaScript: GC component. This vulnerability was fixed in Firefox 148 and Thunderbird 148.

Affected

4 ranges
VendorProductVersion rangeFixed in
debianfirefox< firefox 148.0-1 (sid)firefox 148.0-1 (sid)
mozillafirefox< 148.0148.0
mozillafirefox
mozillathunderbird< 148.0148.0

CVSS provenance

nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
osv9.8CRITICAL