Bug 2533740 (CVE-2026-92019) - CVE-2026-92019 firefox: thunderbird: Mitigation bypass in the Remote Settings Client component
Summary: CVE-2026-92019 firefox: thunderbird: Mitigation bypass in the Remote Settings...
Keywords:
Status: NEW
Alias: CVE-2026-92019
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: 2026-09-15 12:45 UTC by OSIDB Bzimport
Modified: 2026-09-30 14:19 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-2026:69461 0 None None None 2026-09-21 17:34:24 UTC
Red Hat Product Errata RHSA-2026:69462 0 None None None 2026-09-21 19:49:22 UTC
Red Hat Product Errata RHSA-2026:70642 0 None None None 2026-09-24 01:58:43 UTC
Red Hat Product Errata RHSA-2026:71652 0 None None None 2026-09-24 17:37:07 UTC
Red Hat Product Errata RHSA-2026:73130 0 None None None 2026-09-29 12:15:36 UTC
Red Hat Product Errata RHSA-2026:73971 0 None None None 2026-09-30 14:19:33 UTC

Description OSIDB Bzimport 2026-09-15 12:45:22 UTC 
Mitigation bypass in the Remote Settings Client component. This vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, and Firefox ESR 153.3.
Comment 1 Jon Orris 2026-09-21 17:34:23 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:69461 https://access.redhat.com/errata/RHSA-2026:69461
Comment 2 Jon Orris 2026-09-21 19:49:20 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:69462 https://access.redhat.com/errata/RHSA-2026:69462
Comment 3 Jon Orris 2026-09-24 01:58:42 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:70642 https://access.redhat.com/errata/RHSA-2026:70642
Comment 4 Jon Orris 2026-09-24 17:37:06 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:71652 https://access.redhat.com/errata/RHSA-2026:71652
Comment 5 Jon Orris 2026-09-29 12:15:34 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:73130 https://access.redhat.com/errata/RHSA-2026:73130
Comment 6 Jon Orris 2026-09-30 14:19:32 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:73971 https://access.redhat.com/errata/RHSA-2026:73971
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