Bug 2489214 (CVE-2026-12329)

Summary:	CVE-2026-12329 firefox: thunderbird: Memory safety bug fixed in Thunderbird ESR 140.12
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	gotiwari, jhorak, mvyas, rhel-process-autobot, watson-tool-maintainers
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	---
Doc Text:	A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Memory safety bug fixed in Thunderbird ESR 140.12	Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description OSIDB Bzimport 2026-06-16 14:01:41 UTC

Memory safety bug fixed in Firefox ESR 140.12. This vulnerability was fixed in Firefox ESR 140.12.

Comment 1 errata-xmlrpc 2026-06-22 03:03:24 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 03:50:58 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 04:18:39 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 15:58:51 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 18:16:34 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 10:21:33 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 06:27:16 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 06:29:59 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 06:33:33 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 06:37:25 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 09:21:34 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 16:56:13 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

Comment 13 errata-xmlrpc 2026-07-13 03:33:33 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7 Extended Lifecycle Support

Via RHSA-2026:38506 https://access.redhat.com/errata/RHSA-2026:38506

Comment 14 errata-xmlrpc 2026-07-13 07:48:10 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10.0 Extended Update Support

Via RHSA-2026:38751 https://access.redhat.com/errata/RHSA-2026:38751

Comment 15 errata-xmlrpc 2026-07-13 08:09:24 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions

Via RHSA-2026:38753 https://access.redhat.com/errata/RHSA-2026:38753

Comment 16 errata-xmlrpc 2026-07-13 08:16:40 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.6 Extended Update Support

Via RHSA-2026:38750 https://access.redhat.com/errata/RHSA-2026:38750

Comment 17 errata-xmlrpc 2026-07-13 16:53:50 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions

Via RHSA-2026:39011 https://access.redhat.com/errata/RHSA-2026:39011

Comment 18 errata-xmlrpc 2026-07-14 08:56:43 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-2026:39141 https://access.redhat.com/errata/RHSA-2026:39141

Comment 19 errata-xmlrpc 2026-07-14 09:07:42 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-2026:39142 https://access.redhat.com/errata/RHSA-2026:39142