Bug 2533760 (CVE-2026-92015) - CVE-2026-92015 firefox: thunderbird: Privilege escalation in the WebExtensions component
Summary: CVE-2026-92015 firefox: thunderbird: Privilege escalation in the WebExtension...
Keywords:
Status: NEW
Alias: CVE-2026-92015
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-15 12:54 UTC by OSIDB Bzimport
Modified: 2026-09-21 19:49 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-2026:69461 0 None None None 2026-09-21 17:34:11 UTC
Red Hat Product Errata RHSA-2026:69462 0 None None None 2026-09-21 19:49:32 UTC

Description OSIDB Bzimport 2026-09-15 12:54:11 UTC 
Privilege escalation in the WebExtensions component. This vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, and Firefox ESR 153.3.
Comment 1 Jon Orris 2026-09-21 17:34:10 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:69461 https://access.redhat.com/errata/RHSA-2026:69461
Comment 2 Jon Orris 2026-09-21 19:49:31 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:69462 https://access.redhat.com/errata/RHSA-2026:69462
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