CVE-2026-8952 is a vulnerability in Mozilla Firefox
Published on May 19, 2026
Privilege escalation in the Application Update component
Privilege escalation in the Application Update component. This vulnerability was fixed in Firefox 151.
Vulnerability Analysis
CVE-2026-8952 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality and integrity, and no impact on availability.
Weakness Type
Improper Privilege Management
The software does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.
Products Associated with CVE-2026-8952
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Affected Versions
Mozilla Firefox:- Version 151, <= * is unaffected.