PatchGap
Firefox · Core

CVE-2026-84128

Logic Error in Core
Moderate firefox Logic Error

Overview

Moderate
Severity
—
CVSS
No
Exploited ITW
Embargoed
Fix Status
Impactmoderate
DescriptionPrivilege escalation in the WebDriver BiDi component
ComponentCore
Bug ClassLogic Error
Tracker2044280
CISA KEVNot listed
CreditedTomoya Nakanishi
Disclosed2026-09-01

Fix not yet public

No public source fix for this bug has been identified on the main branch yet — it is embargoed or not yet disclosed. Root-cause analysis is withheld until the fix commit is available.
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