Bug 2517838 (CVE-2026-74989) - CVE-2026-74989 firefox: Internally found bugs fixed in Firefox 154
Summary: CVE-2026-74989 firefox: Internally found bugs fixed in Firefox 154
Keywords:
Status: NEW
Alias: CVE-2026-74989
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-08-18 12:50 UTC by OSIDB Bzimport
Modified: 2026-08-21 00:03 UTC (History)
5 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

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Description OSIDB Bzimport 2026-08-18 12:50:23 UTC 
Internally found bugs present in Firefox 153. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. This vulnerability was fixed in Firefox 154.
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