Bug 2562197 (CVE-2026-118023) - CVE-2026-118023 firefox: thunderbird: Sandbox escape due to use-after-free in the Graphics: WebRender component
Summary: CVE-2026-118023 firefox: thunderbird: Sandbox escape due to use-after-free in...
Keywords:
Status: NEW
Alias: CVE-2026-118023
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-27 18:16 UTC by OSIDB Bzimport
Modified: 2026-10-30 16:17 UTC (History)
5 users (show)

Fixed In Version:
Clone Of:
Environment:
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Description OSIDB Bzimport 2026-10-27 18:16:22 UTC 
Sandbox escape due to use-after-free in the Graphics: WebRender component. This vulnerability was fixed in Firefox 159.
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