CVE-2026-92034
Site isolation issue in the Graphics component. This vulnerability was fixed in Firefox 156 and Thunderbird 156.
- Published Sep 15, 2026
- CVSS 9.1 critical
- 0.3% chance of exploitation in the next 30 days (EPSS)
- A fix is available
Site isolation issue in the Graphics component. This vulnerability was fixed in Firefox 156 and Thunderbird 156.