Bug 2517868 (CVE-2026-74944)

Summary: CVE-2026-74944 firefox: thunderbird: Use-after-free in the DOM: Core & HTML 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: Use-after-free in the DOM: Core & HTML component
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 2026-08-18 12:56:40 UTC
Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, and Firefox ESR 153.1.

Comment 1 errata-xmlrpc 2026-08-24 09:35:07 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:58899 https://access.redhat.com/errata/RHSA-2026:58899

Comment 2 errata-xmlrpc 2026-08-24 09:36:37 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:58898 https://access.redhat.com/errata/RHSA-2026:58898

Comment 3 errata-xmlrpc 2026-08-24 10:05:37 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:58897 https://access.redhat.com/errata/RHSA-2026:58897

Comment 4 errata-xmlrpc 2026-09-08 03:27:14 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-2026:64814 https://access.redhat.com/errata/RHSA-2026:64814

Comment 5 errata-xmlrpc 2026-09-08 04:05:57 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10.0 Extended Update Support

Via RHSA-2026:64813 https://access.redhat.com/errata/RHSA-2026:64813

Comment 6 errata-xmlrpc 2026-09-08 07:26:16 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-2026:65111 https://access.redhat.com/errata/RHSA-2026:65111

Comment 7 errata-xmlrpc 2026-09-08 07:37:04 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-2026:65110 https://access.redhat.com/errata/RHSA-2026:65110

Comment 8 errata-xmlrpc 2026-09-08 08:04:56 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions

Via RHSA-2026:65105 https://access.redhat.com/errata/RHSA-2026:65105

Comment 9 errata-xmlrpc 2026-09-08 08:14:41 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.6 Extended Update Support

Via RHSA-2026:65103 https://access.redhat.com/errata/RHSA-2026:65103

Comment 10 errata-xmlrpc 2026-09-08 11:47:48 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:65158 https://access.redhat.com/errata/RHSA-2026:65158

Comment 11 errata-xmlrpc 2026-09-08 13:31:00 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7 Extended Lifecycle Support

Via RHSA-2026:65442 https://access.redhat.com/errata/RHSA-2026:65442

Comment 12 errata-xmlrpc 2026-09-08 20:59:26 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions

Via RHSA-2026:65669 https://access.redhat.com/errata/RHSA-2026:65669

Comment 13 errata-xmlrpc 2026-09-08 21:03:33 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.6 Extended Update Support

Via RHSA-2026:65670 https://access.redhat.com/errata/RHSA-2026:65670

Comment 14 errata-xmlrpc 2026-09-09 03:04:56 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

Via RHSA-2026:65766 https://access.redhat.com/errata/RHSA-2026:65766

Comment 15 errata-xmlrpc 2026-09-09 10:31:55 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

Via RHSA-2026:65888 https://access.redhat.com/errata/RHSA-2026:65888