Live › vulnerability › CVE-2026-117882
Go to dashboardA use-after-free bug in the Layout component of Firefox can be triggered and fixed in Firefox 159 and ESR 115.44 and 153.6. The sources do not state what an attacker gains beyond memory corruption.
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 builds older than the fixed versions, including desktop users and teams with managed browser fleets. The sources do not say which configurations or content are needed to trigger it. unknown
No product ranges from the sources yet.
firefox --version159, 115.44 and 153.6159 or later115.44 or 153.6Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
Use-after-free in the Layout component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, and Firefox ESR 153.6.
This page as .md · .json · in your agent: get_signal("CVE-2026-117882")
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