Bug 2543147 (CVE-2026-100816) - CVE-2026-100816 firefox: Site isolation issue in the DOM: Networking component
Summary: CVE-2026-100816 firefox: Site isolation issue in the DOM: Networking component
Keywords:
Status: NEW
Alias: CVE-2026-100816
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: 2026-09-29 13:04 UTC by OSIDB Bzimport
Modified: 2026-10-16 08:42 UTC (History)
5 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

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Description OSIDB Bzimport 2026-09-29 13:04:54 UTC 
Site isolation issue in the DOM: Networking component. This vulnerability was fixed in Firefox ESR 153.4 and Firefox 157.
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