{"id":"CLSA-2026-1789601376","summary":"Fix CVE(s): CVE-2026-86142, CVE-2026-86143, CVE-2026-86144","details":"   * SECURITY UPDATE: heap buffer overflow in xmlXPtrEvalXPtrPart() on\n     oversized xpointer() expressions\n     - debian/patches/CVE-2026-86142.patch: make xmlStrlen() in xmlstring.c\n       saturate above INT_MAX and reject the saturated length in\n       xmlXPtrEvalXPtrPart() in xpointer.c before sizing the buffer\n     - CVE-2026-86142\n   * SECURITY UPDATE: integer overflow before the output write callback\n     - debian/patches/CVE-2026-86143.patch: check for integer overflow before\n       passing a buffer length to the write callback in xmlIO.c\n     - CVE-2026-86143\n   * SECURITY UPDATE: parse flags not propagated by xmlXIncludeProcess() and\n     xmlXIncludeProcessTree()\n     - debian/patches/CVE-2026-86144.patch: propagate the document parse\n       flags in xmlXIncludeProcess() and xmlXIncludeProcessTree() in\n       xinclude.c\n     - CVE-2026-86144","modified":"2026-10-26T09:32:04.190479059Z","published":"2026-09-16T23:29:49Z","upstream":["CVE-2026-86142","CVE-2026-86143","CVE-2026-86144"],"references":[{"type":"ADVISORY","url":"https://errata.tuxcare.com/els_os/ubuntu18.04els/CLSA-2026-1789601376.html"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-86142"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-86143"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-86144"}],"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.els10"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1789601376.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.els10"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1789601376.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.els10"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1789601376.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.els10"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1789601376.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.els10"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1789601376.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.els10"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1789601376.json"}}],"schema_version":"1.9.0"}