Bug 2489235 (CVE-2026-12297)

Summary: CVE-2026-12297 firefox: thunderbird: Sandbox escape due to incorrect boundary conditions in the Networking component
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: 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: Sandbox escape due to incorrect boundary conditions in the Networking component
Story Points: ---
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Last Closed: Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description OSIDB Bzimport 2026-06-16 14:02:41 UTC
Sandbox escape due to incorrect boundary conditions in the Networking component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, and Firefox ESR 115.37.

Comment 1 errata-xmlrpc 2026-06-22 03:03:41 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 03:50:41 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 04:18:55 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 15:59:18 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 18:16:51 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 10:21:50 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 06:27:32 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 06:30:21 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 06:33:18 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 06:37:08 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 09:21:22 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 16:56:37 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 03:33:16 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 07:48:26 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 08:09:41 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 08:16:57 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