Site Isolation Vulnerability in Firefox by Mozilla

CVE-2026-92034

What is CVE-2026-92034?

A site isolation vulnerability has been identified in the Graphics component of Firefox, potentially allowing unauthorized access to sensitive data across sites. This issue highlights the importance of maintaining strict boundary enforcement, and it has been addressed in the recent Firefox 156 release. Users are advised to update their browsers to mitigate risks associated with this vulnerability.

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