HarborGuard / CVE
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CRITICALCVE-2026-2768Published Modified CNA mozilla

CVE-2026-2768: Sandbox escape in the Storage: IndexedDB component

Sandbox escape in the Storage: IndexedDB component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.

Metrics

CVSS v3.1
10.0
Severity
CRITICAL
Fixed in
140.8
Affected Products
2

Fix available

140.8148
Affected packages
  • Mozilla / Firefox
    Fixed in 140.8, 148
  • Mozilla / Thunderbird
    Fixed in 140.8, 148
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
References