Bug 2570692 (CVE-2026-124871) - CVE-2026-124871 firefox: thunderbird: Use-after-free in the DOM: HTML Parser component
Summary: CVE-2026-124871 firefox: thunderbird: Use-after-free in the DOM: HTML Parser ...
Keywords:
Status: NEW
Alias: CVE-2026-124871
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-11-10 20:15 UTC by OSIDB Bzimport
Modified: 2026-11-11 15:00 UTC (History)
5 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
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Description OSIDB Bzimport 2026-11-10 20:15:58 UTC 
Use-after-free in the DOM: HTML Parser component. This vulnerability was fixed in Firefox 160 and Thunderbird 160.
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