{"id":"CLSA-2026-1783006034","summary":"Fix CVE(s): CVE-2026-11979","details":"   * SECURITY UPDATE: stack-based buffer overflows in the xmlcatalog utility\n     interactive --shell mode\n     - debian/patches/CVE-2026-11979.patch: Add bounds checks in usershell() in\n       xmlcatalog.c so the command, arg and argv fixed-size stack buffers are not\n       overflowed by an overly long --shell input line\n     - CVE-2026-11979","modified":"2026-10-26T09:32:03.332130228Z","published":"2026-07-02T15:27:30Z","upstream":["CVE-2026-11979"],"references":[{"type":"ADVISORY","url":"https://errata.tuxcare.com/els_os/ubuntu18.04els/CLSA-2026-1783006034.html"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-11979"}],"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.els8"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1783006034.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.els8"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1783006034.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.els8"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1783006034.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.els8"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1783006034.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.els8"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1783006034.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.els8"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1783006034.json"}}],"schema_version":"1.9.0"}