Bug 2526757 (CVE-2026-84140) - CVE-2026-84140 firefox: Site isolation issue in the DOM: Navigation component
Summary: CVE-2026-84140 firefox: Site isolation issue in the DOM: Navigation component
Keywords:
Status: NEW
Alias: CVE-2026-84140
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-01 12:42 UTC by OSIDB Bzimport
Modified: 2026-09-21 17:02 UTC (History)
5 users (show)

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

Attachments (Terms of Use)

Description OSIDB Bzimport 2026-09-01 12:42:34 UTC 
Site isolation issue in the DOM: Navigation component. This vulnerability was fixed in Firefox 155 and Firefox ESR 153.2.
Note You need to log in before you can comment on or make changes to this bug.