Live › vulnerability › CVE-2026-117864
Go to dashboardA flaw in the Form Manager component of Firefox allows escape from the browser sandbox. The sources do not say what an attacker gains after escaping.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-27 14:32 UTC. All times on this page are UTC.
Anyone running Firefox or Firefox ESR older than the fixed versions. The sources do not say whether specific configurations or content are needed to trigger the flaw.
No product ranges from the sources yet.
firefox --versionfirefox --version on the ESR install159 or later153.6 or laterEach row is the first time that source carried this signal. The analyst’s rows are its own findings.
Sandbox escape in the Form Manager component. This vulnerability was fixed in Firefox 159 and Firefox ESR 153.6.
This page as .md · .json · in your agent: get_signal("CVE-2026-117864")
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