Live › vulnerability › CVE-2026-117934
Go to dashboardA use-after-free bug in the Layout component of Firefox can corrupt memory when a page is rendered. The sources do not say what an attacker gains beyond that, so the exact impact is not confirmed.
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 builds older than 159, or ESR builds older than 115.44 or 153.6, is affected. The sources do not describe a configuration or role that narrows exposure, so unknown who can skip it.
No product ranges from the sources yet.
firefox --version, and compare it against 159, 115.44 and 153.6.159 or later on the current channel.115.44 or 153.6 on the ESR branches.Each 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-2026-117934")
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