CVE-2026-2768 - Vulnerability Analysis

Overview

Firefox < 148 and Firefox ESR < 140.8 contain a sandbox escape vulnerability caused by flaws in the Storage: IndexedDB component, letting attackers escape sandbox restrictions, exploit requires no special conditions.

Severity & Score

Impact

Attackers can escape sandbox restrictions, potentially leading to full system compromise or code execution.

Mitigation

Update to Firefox 148, Firefox ESR 140.8 or later.

References

• https://bugzilla.mozilla.org/show_bug.cgi?id=2014101
• https://www.mozilla.org/security/advisories/mfsa2026-13/
• https://www.mozilla.org/security/advisories/mfsa2026-15/
• https://www.mozilla.org/security/advisories/mfsa2026-16/
• https://www.mozilla.org/security/advisories/mfsa2026-17/

Related Resources

• Vulnerability Intelligence Dashboard
• Credential Scanner