{"id":"CLSA-2026-1789463267","summary":"Fix CVE(s): CVE-2026-86140","details":"   * SECURITY UPDATE: stack-based buffer overflow in xmlSnprintfElements()\n     - debian/patches/CVE-2026-86140.patch: add the missing remaining-space\n       checks around the strcat() calls that wrap the node loop in\n       xmlSnprintfElements() in valid.c, matching the guards CVE-2025-24928\n       already added to xmlSnprintfElementContent()\n     - CVE-2026-86140","modified":"2026-10-26T09:43:48.998797917Z","published":"2026-09-15T09:07:57Z","upstream":["CVE-2025-24928","CVE-2026-86140"],"references":[{"type":"ADVISORY","url":"https://errata.tuxcare.com/els_os/ubuntu18.04els/CLSA-2026-1789463267.html"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-86140"}],"affected":[{"package":{"name":"libxml2","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/libxml2?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.9.4+dfsg1-6.1ubuntu1.9+tuxcare.els9"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1789463267.json"}},{"package":{"name":"libxml2-dev","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/libxml2-dev?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.9.4+dfsg1-6.1ubuntu1.9+tuxcare.els9"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1789463267.json"}},{"package":{"name":"libxml2-doc","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/libxml2-doc?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.9.4+dfsg1-6.1ubuntu1.9+tuxcare.els9"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1789463267.json"}},{"package":{"name":"libxml2-utils","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/libxml2-utils?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.9.4+dfsg1-6.1ubuntu1.9+tuxcare.els9"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1789463267.json"}},{"package":{"name":"python-libxml2","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/python-libxml2?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.9.4+dfsg1-6.1ubuntu1.9+tuxcare.els9"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1789463267.json"}},{"package":{"name":"python3-libxml2","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/python3-libxml2?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.9.4+dfsg1-6.1ubuntu1.9+tuxcare.els9"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1789463267.json"}}],"schema_version":"1.9.0"}