{"id":"CLSA-2026-1789554317","summary":"libxml2: Fix of 2 CVEs","details":"- CVE-2026-86143: guard the size_t buffer length against INT_MAX before it is\n  narrowed to the int passed to writecallback in xmlOutputBufferWrite(),\n  xmlOutputBufferWriteEscape() and xmlOutputBufferFlush() (xmlIO.c), so a\n  negative length can no longer reach an output callback\n- CVE-2026-86144: propagate the document's parseFlags in xmlXIncludeProcess()\n  and xmlXIncludeProcessTree() and apply them to the parse=\"text\" sub-context\n  in xmlXIncludeLoadTxt() (xinclude.c), so XML_PARSE_NONET is honoured during\n  XInclude resolution","modified":"2026-10-26T09:31:58.525452279Z","published":"2026-09-16T10:25:27Z","upstream":["CVE-2026-86143","CVE-2026-86144"],"references":[{"type":"ADVISORY","url":"https://errata.tuxcare.com/els_os/rhel7els/CLSA-2026-1789554317.html"},{"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:RHEL:7","purl":"pkg:rpm/tuxcare/libxml2?distro=rhel-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.9.1-6.0.11.el7_9.6.tuxcare.els10"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/rhel7els/CLSA-2026-1789554317.json"}},{"package":{"name":"libxml2-devel","ecosystem":"TuxCare:RHEL:7","purl":"pkg:rpm/tuxcare/libxml2-devel?distro=rhel-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.9.1-6.0.11.el7_9.6.tuxcare.els10"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/rhel7els/CLSA-2026-1789554317.json"}},{"package":{"name":"libxml2-python","ecosystem":"TuxCare:RHEL:7","purl":"pkg:rpm/tuxcare/libxml2-python?distro=rhel-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.9.1-6.0.11.el7_9.6.tuxcare.els10"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/rhel7els/CLSA-2026-1789554317.json"}},{"package":{"name":"libxml2-static","ecosystem":"TuxCare:RHEL:7","purl":"pkg:rpm/tuxcare/libxml2-static?distro=rhel-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.9.1-6.0.11.el7_9.6.tuxcare.els10"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/rhel7els/CLSA-2026-1789554317.json"}}],"schema_version":"1.9.0"}