Bug 2526764 (CVE-2026-84119) - CVE-2026-84119 firefox: Sandbox escape due to use-after-free in the DOM: Navigation component
Summary: CVE-2026-84119 firefox: Sandbox escape due to use-after-free in the DOM: Navi...
Keywords:
Status: NEW
Alias: CVE-2026-84119
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: 2026-09-01 12:48 UTC by OSIDB Bzimport
Modified: 2026-10-13 08:48 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-2026:67129 0 None None None 2026-09-14 13:40:54 UTC
Red Hat Product Errata RHSA-2026:67133 0 None None None 2026-09-14 13:40:45 UTC
Red Hat Product Errata RHSA-2026:68549 0 None None None 2026-09-17 07:49:22 UTC
Red Hat Product Errata RHSA-2026:70642 0 None None None 2026-09-24 01:58:03 UTC
Red Hat Product Errata RHSA-2026:73130 0 None None None 2026-09-29 12:15:24 UTC
Red Hat Product Errata RHSA-2026:73971 0 None None None 2026-09-30 14:19:22 UTC
Red Hat Product Errata RHSA-2026:76740 0 None None None 2026-10-06 13:26:29 UTC
Red Hat Product Errata RHSA-2026:76741 0 None None None 2026-10-06 13:07:20 UTC
Red Hat Product Errata RHSA-2026:76742 0 None None None 2026-10-06 13:08:17 UTC
Red Hat Product Errata RHSA-2026:76745 0 None None None 2026-10-06 13:14:13 UTC
Red Hat Product Errata RHSA-2026:76746 0 None None None 2026-10-06 13:16:27 UTC
Red Hat Product Errata RHSA-2026:76894 0 None None None 2026-10-06 17:31:04 UTC
Red Hat Product Errata RHSA-2026:76895 0 None None None 2026-10-06 21:08:01 UTC
Red Hat Product Errata RHSA-2026:77610 0 None None None 2026-10-07 13:53:19 UTC
Red Hat Product Errata RHSA-2026:77627 0 None None None 2026-10-07 16:04:15 UTC
Red Hat Product Errata RHSA-2026:77631 0 None None None 2026-10-07 15:21:32 UTC
Red Hat Product Errata RHSA-2026:77632 0 None None None 2026-10-07 14:26:25 UTC
Red Hat Product Errata RHSA-2026:80503 0 None None None 2026-10-12 01:45:42 UTC
Red Hat Product Errata RHSA-2026:81912 0 None None None 2026-10-13 05:01:10 UTC
Red Hat Product Errata RHSA-2026:81913 0 None None None 2026-10-13 04:58:54 UTC
Red Hat Product Errata RHSA-2026:82122 0 None None None 2026-10-13 08:48:28 UTC

Description OSIDB Bzimport 2026-09-01 12:48:19 UTC 
Sandbox escape due to use-after-free in the DOM: Navigation component. This vulnerability was fixed in Firefox 155, Firefox ESR 115.40, Firefox ESR 140.15, and Firefox ESR 153.2.
Comment 1 Jon Orris 2026-09-14 13:40:44 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:67133 https://access.redhat.com/errata/RHSA-2026:67133
Comment 2 Jon Orris 2026-09-14 13:40:53 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:67129 https://access.redhat.com/errata/RHSA-2026:67129
Comment 3 Jon Orris 2026-09-17 07:49:21 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:68549 https://access.redhat.com/errata/RHSA-2026:68549
Comment 4 Jon Orris 2026-09-24 01:58:02 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 5 Jon Orris 2026-09-29 12:15:22 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 14:19:22 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 2026-10-06 13:07:19 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7 Extended Lifecycle Support

Via RHSA-2026:76741 https://access.redhat.com/errata/RHSA-2026:76741
Comment 8 Jon Orris 2026-10-06 13:08:16 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

Via RHSA-2026:76742 https://access.redhat.com/errata/RHSA-2026:76742
Comment 9 Jon Orris 2026-10-06 13:14:12 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-2026:76745 https://access.redhat.com/errata/RHSA-2026:76745
Comment 10 Jon Orris 2026-10-06 13:16:26 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-2026:76746 https://access.redhat.com/errata/RHSA-2026:76746
Comment 11 Jon Orris 2026-10-06 13:26:28 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions

Via RHSA-2026:76740 https://access.redhat.com/errata/RHSA-2026:76740
Comment 12 Jon Orris 2026-10-06 17:31:03 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-2026:76894 https://access.redhat.com/errata/RHSA-2026:76894
Comment 13 Jon Orris 2026-10-06 21:08:00 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.6 Extended Update Support

Via RHSA-2026:76895 https://access.redhat.com/errata/RHSA-2026:76895
Comment 14 Jon Orris 2026-10-07 13:53:17 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10.0 Extended Update Support

Via RHSA-2026:77610 https://access.redhat.com/errata/RHSA-2026:77610
Comment 15 Jon Orris 2026-10-07 14:26:24 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

Via RHSA-2026:77632 https://access.redhat.com/errata/RHSA-2026:77632
Comment 16 Jon Orris 2026-10-07 15:21:31 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10.0 Extended Update Support

Via RHSA-2026:77631 https://access.redhat.com/errata/RHSA-2026:77631
Comment 17 Jon Orris 2026-10-07 16:04:14 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions

Via RHSA-2026:77627 https://access.redhat.com/errata/RHSA-2026:77627
Comment 18 Jon Orris 2026-10-12 01:45:41 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.6 Extended Update Support

Via RHSA-2026:80503 https://access.redhat.com/errata/RHSA-2026:80503
Comment 20 Jon Orris 2026-10-13 04:58:52 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 21 Jon Orris 2026-10-13 05:01:09 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 22 Jon Orris 2026-10-13 08:48:27 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
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