Bug 2517832 (CVE-2026-75874) - CVE-2026-75874 firefox: thunderbird: Sandbox escape in the Remote Settings Client component
Summary: CVE-2026-75874 firefox: thunderbird: Sandbox escape in the Remote Settings Cl...
Keywords:
Status: NEW
Alias: CVE-2026-75874
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: 2026-08-18 12:50 UTC by OSIDB Bzimport
Modified: 2026-10-13 08:48 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-2026:67129 0 None None None 2026-09-14 13:40:48 UTC
Red Hat Product Errata RHSA-2026:67133 0 None None None 2026-09-14 13:40:41 UTC
Red Hat Product Errata RHSA-2026:68549 0 None None None 2026-09-17 07:49:19 UTC
Red Hat Product Errata RHSA-2026:70642 0 None None None 2026-09-24 01:58:00 UTC
Red Hat Product Errata RHSA-2026:73130 0 None None None 2026-09-29 12:15:20 UTC
Red Hat Product Errata RHSA-2026:73971 0 None None None 2026-09-30 14:19:20 UTC
Red Hat Product Errata RHSA-2026:76740 0 None None None 2026-10-06 13:26:25 UTC
Red Hat Product Errata RHSA-2026:76741 0 None None None 2026-10-06 13:07:17 UTC
Red Hat Product Errata RHSA-2026:76742 0 None None None 2026-10-06 13:08:20 UTC
Red Hat Product Errata RHSA-2026:76745 0 None None None 2026-10-06 13:14:07 UTC
Red Hat Product Errata RHSA-2026:76746 0 None None None 2026-10-06 13:16:21 UTC
Red Hat Product Errata RHSA-2026:76894 0 None None None 2026-10-06 17:31:07 UTC
Red Hat Product Errata RHSA-2026:76895 0 None None None 2026-10-06 21:07:57 UTC
Red Hat Product Errata RHSA-2026:77610 0 None None None 2026-10-07 13:53:11 UTC
Red Hat Product Errata RHSA-2026:77627 0 None None None 2026-10-07 16:04:12 UTC
Red Hat Product Errata RHSA-2026:77631 0 None None None 2026-10-07 15:21:29 UTC
Red Hat Product Errata RHSA-2026:77632 0 None None None 2026-10-07 14:26:22 UTC
Red Hat Product Errata RHSA-2026:80503 0 None None None 2026-10-12 01:45:38 UTC
Red Hat Product Errata RHSA-2026:81912 0 None None None 2026-10-13 05:00:25 UTC
Red Hat Product Errata RHSA-2026:81913 0 None None None 2026-10-13 04:58:50 UTC
Red Hat Product Errata RHSA-2026:82122 0 None None None 2026-10-13 08:48:26 UTC

Description OSIDB Bzimport 2026-08-18 12:50:03 UTC 
Sandbox escape in the Remote Settings Client component. This vulnerability was fixed in Firefox 154.
Comment 1 Jon Orris 2026-09-14 13:40:40 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:67133 https://access.redhat.com/errata/RHSA-2026:67133
Comment 2 Jon Orris 2026-09-14 13:40:47 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:67129 https://access.redhat.com/errata/RHSA-2026:67129
Comment 3 Jon Orris 2026-09-17 07:49:18 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:68549 https://access.redhat.com/errata/RHSA-2026:68549
Comment 4 Jon Orris 2026-09-24 01:57:59 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 5 Jon Orris 2026-09-29 12:15:19 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 14:19:19 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
Comment 7 Jon Orris 2026-10-06 13:07:16 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7 Extended Lifecycle Support

Via RHSA-2026:76741 https://access.redhat.com/errata/RHSA-2026:76741
Comment 8 Jon Orris 2026-10-06 13:08:19 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

Via RHSA-2026:76742 https://access.redhat.com/errata/RHSA-2026:76742
Comment 9 Jon Orris 2026-10-06 13:14:05 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On

Via RHSA-2026:76745 https://access.redhat.com/errata/RHSA-2026:76745
Comment 10 Jon Orris 2026-10-06 13:16:19 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions
  Red Hat Enterprise Linux 8.8 Telecommunications Update Service

Via RHSA-2026:76746 https://access.redhat.com/errata/RHSA-2026:76746
Comment 11 Jon Orris 2026-10-06 13:26:24 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions

Via RHSA-2026:76740 https://access.redhat.com/errata/RHSA-2026:76740
Comment 12 Jon Orris 2026-10-06 17:31:06 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On

Via RHSA-2026:76894 https://access.redhat.com/errata/RHSA-2026:76894
Comment 13 Jon Orris 2026-10-06 21:07:56 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.6 Extended Update Support

Via RHSA-2026:76895 https://access.redhat.com/errata/RHSA-2026:76895
Comment 14 Jon Orris 2026-10-07 13:53:10 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10.0 Extended Update Support

Via RHSA-2026:77610 https://access.redhat.com/errata/RHSA-2026:77610
Comment 15 Jon Orris 2026-10-07 14:26:21 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

Via RHSA-2026:77632 https://access.redhat.com/errata/RHSA-2026:77632
Comment 16 Jon Orris 2026-10-07 15:21:28 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10.0 Extended Update Support

Via RHSA-2026:77631 https://access.redhat.com/errata/RHSA-2026:77631
Comment 17 Jon Orris 2026-10-07 16:04:11 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions

Via RHSA-2026:77627 https://access.redhat.com/errata/RHSA-2026:77627
Comment 18 Jon Orris 2026-10-12 01:45:37 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.6 Extended Update Support

Via RHSA-2026:80503 https://access.redhat.com/errata/RHSA-2026:80503
Comment 20 Jon Orris 2026-10-13 04:58:49 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On

Via RHSA-2026:81913 https://access.redhat.com/errata/RHSA-2026:81913
Comment 21 Jon Orris 2026-10-13 05:00:24 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions
  Red Hat Enterprise Linux 8.8 Telecommunications Update Service

Via RHSA-2026:81912 https://access.redhat.com/errata/RHSA-2026:81912
Comment 22 Jon Orris 2026-10-13 08:48:24 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On

Via RHSA-2026:82122 https://access.redhat.com/errata/RHSA-2026:82122
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