Bug 2571052 (CVE-2026-124913) - CVE-2026-124913 firefox: thunderbird: Site isolation issue in the Networking component
Summary: CVE-2026-124913 firefox: thunderbird: Site isolation issue in the Networking ...
Keywords:
Status: NEW
Alias: CVE-2026-124913
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-11-10 20:38 UTC by OSIDB Bzimport
Modified: 2026-11-11 20:55 UTC (History)
5 users (show)

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

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2026:99110 0 None None None 2026-11-11 20:55:00 UTC
Red Hat Product Errata RHSA-2026:99111 0 None None None 2026-11-11 19:33:15 UTC
Red Hat Product Errata RHSA-2026:99112 0 None None None 2026-11-11 20:02:26 UTC

Description OSIDB Bzimport 2026-11-10 20:38:22 UTC 
Site isolation issue in the Networking component. This vulnerability was fixed in Firefox 160, Firefox ESR 153.7, and Thunderbird 160.
Comment 1 errata-xmlrpc 2026-11-11 19:33:13 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:99111 https://access.redhat.com/errata/RHSA-2026:99111
Comment 2 errata-xmlrpc 2026-11-11 20:02:22 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:99112 https://access.redhat.com/errata/RHSA-2026:99112
Comment 3 errata-xmlrpc 2026-11-11 20:54:58 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.8 Extended Update Support

Via RHSA-2026:99110 https://access.redhat.com/errata/RHSA-2026:99110
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