{"id":"CLSA-2026-1789744484","summary":"Fix CVE(s): CVE-2026-86138","details":"   * SECURITY UPDATE: heap buffer overflow in the XML dictionary QName\n     interning path\n     - debian/patches/CVE-2026-86138.patch: Add integer overflow checks to the\n       pool size calculation in xmlDictAddQString() in dict.c, and cap the\n       prefix and name lengths in xmlDictQLookup() so the sum namelen + plen + 1\n       cannot wrap and undersize the pool allocation\n     - CVE-2026-86138","modified":"2026-10-26T09:32:03.917960382Z","published":"2026-09-18T15:14:56Z","upstream":["CVE-2026-86138"],"references":[{"type":"ADVISORY","url":"https://errata.tuxcare.com/els_os/ubuntu18.04els/CLSA-2026-1789744484.html"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-86138"}],"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.els11"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1789744484.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.els11"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1789744484.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.els11"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1789744484.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.els11"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1789744484.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.els11"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1789744484.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.els11"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1789744484.json"}}],"schema_version":"1.9.0"}