CVE Field Guide
About Us
CVE-2026-84128
PUBLISHED
Privilege escalation in the WebDriver BiDi component
Assigner:
mozilla
Reserved:
01.09.2026
Published:
01.09.2026
Updated:
01.09.2026
Privilege escalation in the WebDriver BiDi component. This vulnerability was fixed in Firefox 155.
Product Status
Vendor
Mozilla
Product
Firefox
Versions
unaffected from 155 to * (incl.)
Credits
Tomoya Nakanishi
References
https://bugzilla.mozilla.org/show_bug.cgi?id=2044280
https://www.mozilla.org/security/advisories/mfsa2026-82/