accessibility/AXObjectCache.cpp in WebKit, as used in WebKitGTK through 2.26.4 and WPE WebKit through 2.26.4, allows a denial of service (application crash) because maintenance of the m_deferredFocusedNodeChange data structure mishandles removal. CREATE(Triage):(User=admin) [CVE-2020-10018|https://nvd.nist.gov/vuln/detail/CVE-2020-10018]