Bug 2569957 (CVE-2026-124917) - CVE-2026-124917 firefox: thunderbird: Sandbox escape due to use-after-free in the Widget: Gtk component
Summary: CVE-2026-124917 firefox: thunderbird: Sandbox escape due to use-after-free in...
Keywords:
Status: NEW
Alias: CVE-2026-124917
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-11-10 19:27 UTC by OSIDB Bzimport
Modified: 2026-11-11 20:54 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-2026:99110 0 None None None 2026-11-11 20:54:34 UTC
Red Hat Product Errata RHSA-2026:99111 0 None None None 2026-11-11 19:32:06 UTC
Red Hat Product Errata RHSA-2026:99112 0 None None None 2026-11-11 20:04:07 UTC

Description OSIDB Bzimport 2026-11-10 19:27:04 UTC 
Sandbox escape due to use-after-free in the Widget: Gtk component. This vulnerability was fixed in Firefox 160, Firefox ESR 153.7, and Thunderbird 160.
Comment 1 errata-xmlrpc 2026-11-11 19:32:04 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:99111 https://access.redhat.com/errata/RHSA-2026:99111
Comment 2 errata-xmlrpc 2026-11-11 20:04:05 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:99112 https://access.redhat.com/errata/RHSA-2026:99112
Comment 3 errata-xmlrpc 2026-11-11 20:54:32 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.8 Extended Update Support

Via RHSA-2026:99110 https://access.redhat.com/errata/RHSA-2026:99110
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