Bug 2489239 (CVE-2026-12308) - CVE-2026-12308 firefox: thunderbird: Memory safety bug fixed in Thunderbird ESR 140.12
Summary: CVE-2026-12308 firefox: thunderbird: Memory safety bug fixed in Thunderbird E...
Keywords:
Status: NEW
Alias: CVE-2026-12308
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-06-16 14:02 UTC by OSIDB Bzimport
Modified: 2026-07-09 16:56 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-2026:27717 0 None None None 2026-06-22 03:03:46 UTC
Red Hat Product Errata RHSA-2026:27733 0 None None None 2026-06-22 03:50:39 UTC
Red Hat Product Errata RHSA-2026:27734 0 None None None 2026-06-22 04:19:01 UTC
Red Hat Product Errata RHSA-2026:29940 0 None None None 2026-06-25 15:59:24 UTC
Red Hat Product Errata RHSA-2026:30846 0 None None None 2026-06-29 18:16:55 UTC
Red Hat Product Errata RHSA-2026:33445 0 None None None 2026-06-30 10:21:54 UTC
Red Hat Product Errata RHSA-2026:36100 0 None None None 2026-07-07 06:27:37 UTC
Red Hat Product Errata RHSA-2026:36101 0 None None None 2026-07-07 06:37:06 UTC
Red Hat Product Errata RHSA-2026:36102 0 None None None 2026-07-07 06:30:25 UTC
Red Hat Product Errata RHSA-2026:36103 0 None None None 2026-07-07 06:33:22 UTC
Red Hat Product Errata RHSA-2026:37210 0 None None None 2026-07-09 09:21:21 UTC
Red Hat Product Errata RHSA-2026:37391 0 None None None 2026-07-09 16:56:35 UTC

Description OSIDB Bzimport 2026-06-16 14:02:56 UTC 
Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152 and Firefox ESR 140.12.
Comment 1 errata-xmlrpc 2026-06-22 03:03:45 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:27717 https://access.redhat.com/errata/RHSA-2026:27717
Comment 2 errata-xmlrpc 2026-06-22 03:50:38 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:27733 https://access.redhat.com/errata/RHSA-2026:27733
Comment 3 errata-xmlrpc 2026-06-22 04:19:00 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:27734 https://access.redhat.com/errata/RHSA-2026:27734
Comment 4 errata-xmlrpc 2026-06-25 15:59:22 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:29940 https://access.redhat.com/errata/RHSA-2026:29940
Comment 5 errata-xmlrpc 2026-06-29 18:16:54 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:30846 https://access.redhat.com/errata/RHSA-2026:30846
Comment 6 errata-xmlrpc 2026-06-30 10:21:53 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:33445 https://access.redhat.com/errata/RHSA-2026:33445
Comment 7 errata-xmlrpc 2026-07-07 06:27:35 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10.0 Extended Update Support

Via RHSA-2026:36100 https://access.redhat.com/errata/RHSA-2026:36100
Comment 8 errata-xmlrpc 2026-07-07 06:30:24 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-2026:36102 https://access.redhat.com/errata/RHSA-2026:36102
Comment 9 errata-xmlrpc 2026-07-07 06:33:21 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-2026:36103 https://access.redhat.com/errata/RHSA-2026:36103
Comment 10 errata-xmlrpc 2026-07-07 06:37:05 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

Via RHSA-2026:36101 https://access.redhat.com/errata/RHSA-2026:36101
Comment 11 errata-xmlrpc 2026-07-09 09:21:19 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-2026:37210 https://access.redhat.com/errata/RHSA-2026:37210
Comment 12 errata-xmlrpc 2026-07-09 16:56:33 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.6 Extended Update Support

Via RHSA-2026:37391 https://access.redhat.com/errata/RHSA-2026:37391
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