CVE-2026-8401 Details
Description
Sandbox escape in the Profile Backup component. This vulnerability was fixed in Firefox 150.0.3, Firefox ESR 115.36, Firefox ESR 140.11, and Thunderbird 140.11.
A sandbox escape vulnerability has been identified in the Profile Backup component of Mozilla Firefox. This issue allows for unauthorized access or manipulation of data within the application's sandbox environment, potentially leading to broader system access or control. The vulnerability affects Firefox versions prior to 150.0.3.
Users can upgrade to Firefox version 150.0.3 to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed May 14, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-653 | Improper Isolation or Compartmentalization | redhat-SADP |
| CWE-693 | Protection Mechanism Failure | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| mozilla firefox | < 150.0.3 |
CPE
Remediation
| |
Change History
9 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 15, 2026 | CVE Modified | redhat-SADP |
| Jun 30, 2026 | CVE Modified | redhat-SADP |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Jun 17, 2026 | CVE Modified | [email protected] |
| May 19, 2026 | CVE Modified | [email protected] |
| May 19, 2026 | CVE Modified | [email protected] |
| May 15, 2026 | Initial Analysis | [email protected] |
| May 14, 2026 | CVE Modified | CISA-ADP |
| May 12, 2026 | New CVE Received | [email protected] |