Bug 2517833 (CVE-2026-74941) - CVE-2026-74941 firefox: thunderbird: Privilege escalation in the Graphics: CanvasWebGL component
Summary: CVE-2026-74941 firefox: thunderbird: Privilege escalation in the Graphics: Ca...
Keywords:
Status: NEW
Alias: CVE-2026-74941
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-08-18 12:50 UTC by OSIDB Bzimport
Modified: 2026-08-18 19:13 UTC (History)
5 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
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Description OSIDB Bzimport 2026-08-18 12:50:06 UTC 
Privilege escalation in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, and Firefox ESR 153.1.
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