CVE-2026-2768

CriticalCVSS 10.0/10Last modified Jul 15, 2026

Description

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 3.1 10.0/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Weakness enumeration

CWE-284 CWE-693

Affected software

No affected versions have been published.

Timeline

Published: Feb 24, 2026
Last modified: Jul 15, 2026
NVD status: Modified

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