CVE-2026-92012: Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component
Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, and Firefox ESR 153.3.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Mozilla Firefox (Graphics: CanvasWebGL)to a version that resolves this vulnerability.Fixed in 156 - Upgrade
Upgrade
Mozilla Firefox ESR (Graphics: CanvasWebGL)to a version that resolves this vulnerability.Fixed in 115.41 - Upgrade
Upgrade
Mozilla Firefox ESR (Graphics: CanvasWebGL)to a version that resolves this vulnerability.Fixed in 140.16 - Upgrade
Upgrade
Mozilla Firefox ESR (Graphics: CanvasWebGL)to a version that resolves this vulnerability.Fixed in 153.3
Event History
Frequently Asked Questions
Which Firefox releases include the fix?
The issue was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, and Firefox ESR 153.3.