Live › vulnerability › CVE-2026-117909
Go to dashboardA use-after-free bug in the JavaScript garbage collector of Firefox could let a crafted script corrupt memory. The sources do not say what an attacker can achieve beyond that.
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, which includes desktop browsers and managed ESR deployments. The sources do not say whether the flaw needs a specific setting or whether a page visit alone is enough to trigger it.
No product ranges from the sources yet.
firefox --version153.6159 or later153.6 or laterEach row is the first time that source carried this signal. The analyst’s rows are its own findings.
Use-after-free in the JavaScript: GC component. This vulnerability was fixed in Firefox 159 and Firefox ESR 153.6.
This page as .md · .json · in your agent: get_signal("CVE-2026-117909")
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