Bug 2533799 (CVE-2026-92023) - CVE-2026-92023 firefox: thunderbird: Use-after-free in the XML component
Summary: CVE-2026-92023 firefox: thunderbird: Use-after-free in the XML component
Keywords:
Status: NEW
Alias: CVE-2026-92023
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-15 13:05 UTC by OSIDB Bzimport
Modified: 2026-10-15 07:42 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 17:34:42 UTC
Red Hat Product Errata RHSA-2026:69462 0 None None None 2026-09-21 19:49:11 UTC
Red Hat Product Errata RHSA-2026:70642 0 None None None 2026-09-24 01:58:16 UTC
Red Hat Product Errata RHSA-2026:71652 0 None None None 2026-09-24 17:37:06 UTC
Red Hat Product Errata RHSA-2026:73130 0 None None None 2026-09-29 12:16:08 UTC
Red Hat Product Errata RHSA-2026:73971 0 None None None 2026-09-30 14:20:01 UTC
Red Hat Product Errata RHSA-2026:81392 0 None None None 2026-10-12 17:30:01 UTC
Red Hat Product Errata RHSA-2026:81393 0 None None None 2026-10-12 17:39:06 UTC
Red Hat Product Errata RHSA-2026:81394 0 None None None 2026-10-12 17:37:23 UTC
Red Hat Product Errata RHSA-2026:81884 0 None None None 2026-10-13 04:55:30 UTC
Red Hat Product Errata RHSA-2026:81912 0 None None None 2026-10-13 05:00:31 UTC
Red Hat Product Errata RHSA-2026:81913 0 None None None 2026-10-13 04:59:14 UTC
Red Hat Product Errata RHSA-2026:82122 0 None None None 2026-10-13 08:49:16 UTC
Red Hat Product Errata RHSA-2026:82720 0 None None None 2026-10-14 03:57:06 UTC
Red Hat Product Errata RHSA-2026:82779 0 None None None 2026-10-14 07:52:57 UTC
Red Hat Product Errata RHSA-2026:82780 0 None None None 2026-10-14 07:53:24 UTC
Red Hat Product Errata RHSA-2026:82817 0 None None None 2026-10-14 09:14:42 UTC
Red Hat Product Errata RHSA-2026:82818 0 None None None 2026-10-14 09:04:23 UTC
Red Hat Product Errata RHSA-2026:83076 0 None None None 2026-10-14 16:21:18 UTC
Red Hat Product Errata RHSA-2026:83077 0 None None None 2026-10-14 16:24:07 UTC
Red Hat Product Errata RHSA-2026:83496 0 None None None 2026-10-15 07:42:24 UTC

Description OSIDB Bzimport 2026-09-15 13:05:27 UTC 
Use-after-free in the XML 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 17:34:41 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 19:49:10 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 01:58:14 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 17:37:05 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 12:16:07 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 14:20:00 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 2026-10-12 17:30:00 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10.0 Extended Update Support

Via RHSA-2026:81392 https://access.redhat.com/errata/RHSA-2026:81392
Comment 8 Jon Orris 2026-10-12 17:37:22 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

Via RHSA-2026:81394 https://access.redhat.com/errata/RHSA-2026:81394
Comment 9 Jon Orris 2026-10-12 17:39:04 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions

Via RHSA-2026:81393 https://access.redhat.com/errata/RHSA-2026:81393
Comment 10 Jon Orris 2026-10-13 04:55:29 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.6 Extended Update Support

Via RHSA-2026:81884 https://access.redhat.com/errata/RHSA-2026:81884
Comment 11 Jon Orris 2026-10-13 04:59:13 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 12 Jon Orris 2026-10-13 05:00:30 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 13 Jon Orris 2026-10-13 08:49:15 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
Comment 14 Jon Orris 2026-10-14 03:57:05 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-2026:82720 https://access.redhat.com/errata/RHSA-2026:82720
Comment 15 Jon Orris 2026-10-14 07:52:56 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-2026:82779 https://access.redhat.com/errata/RHSA-2026:82779
Comment 16 Jon Orris 2026-10-14 07:53:23 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

Via RHSA-2026:82780 https://access.redhat.com/errata/RHSA-2026:82780
Comment 17 Jon Orris 2026-10-14 09:04:22 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10.0 Extended Update Support

Via RHSA-2026:82818 https://access.redhat.com/errata/RHSA-2026:82818
Comment 18 Jon Orris 2026-10-14 09:14:41 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.6 Extended Update Support

Via RHSA-2026:82817 https://access.redhat.com/errata/RHSA-2026:82817
Comment 19 Jon Orris 2026-10-14 16:21:17 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-2026:83076 https://access.redhat.com/errata/RHSA-2026:83076
Comment 20 Jon Orris 2026-10-14 16:24:05 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions

Via RHSA-2026:83077 https://access.redhat.com/errata/RHSA-2026:83077
Comment 21 Jon Orris 2026-10-15 07:42:23 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7 Extended Lifecycle Support

Via RHSA-2026:83496 https://access.redhat.com/errata/RHSA-2026:83496
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