{"id":"CLSA-2026-1786109033","summary":"Fix CVE(s): CVE-2026-56131","details":"   * SECURITY UPDATE: use-after-free through handler re-entrancy\n     - debian/patches/CVE-2026-56131.patch: track the handler call depth at\n       every handler call site, including the ones reached through a CDATA\n       section, and reject XML_ResumeParser, XML_Parse, XML_ParseBuffer,\n       XML_GetBuffer, XML_ParserFree and XML_ParserReset while a handler is\n       on the stack (libexpat PR #1246, PR #1267 and PR #1278).\n     - CVE-2026-56131","modified":"2026-10-26T09:32:01.818854844Z","published":"2026-08-07T13:24:04Z","upstream":["CVE-2026-56131"],"references":[{"type":"ADVISORY","url":"https://errata.tuxcare.com/els_os/ubuntu16.04els/CLSA-2026-1786109033.html"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-56131"}],"affected":[{"package":{"name":"expat","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/expat?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.1.0-7ubuntu0.16.04.5+tuxcare.els12"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1786109033.json"}},{"package":{"name":"libexpat1","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/libexpat1?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.1.0-7ubuntu0.16.04.5+tuxcare.els12"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1786109033.json"}},{"package":{"name":"libexpat1-dev","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/libexpat1-dev?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.1.0-7ubuntu0.16.04.5+tuxcare.els12"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1786109033.json"}}],"schema_version":"1.9.0"}