Live › vulnerability › CVE-2026-117930
Go to dashboardA use-after-free bug in the DOM Bindings (WebIDL) component of Firefox lets memory be reused after it is freed. The sources do not say what an attacker can achieve beyond that, so the exact impact is unclear.
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 a Firefox version older than the fixed releases on a branch they use, including desktop installs and managed fleets. The sources do not say which configurations or browsing conditions trigger the bug, so the exposure path is unknown.
No product ranges from the sources yet.
firefox --version or open About Firefox and compare against 159, 115.44 (ESR) and 153.6 (ESR)159, or to 115.44 on the ESR 115 branch, or to 153.6 on the ESR 153 branchEach row is the first time that source carried this signal. The analyst’s rows are its own findings.
Use-after-free in the DOM: Bindings (WebIDL) 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-2026-117930")
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