CVE-2026-109739 PUBLISHED

Privilege escalation in the WebExtensions component

Assigner: mozilla
Reserved: 13.10.2026 Published: 13.10.2026 Updated: 13.10.2026

Privilege escalation in the WebExtensions component. This vulnerability was fixed in Firefox 158.

Product Status

Vendor Mozilla
Product Firefox
Versions
  • unaffected from 158 to * (incl.)

Credits

  • Tomoya Nakanishi

References