{"id":"CLSA-2026-1789780589","summary":"libxml2: Fix of 5 CVEs","details":"- CVE-2026-86140: add bounds checks around the parenthesis writes in xmlSnprintfElements\n- CVE-2026-86141: check the xmlStrdup result in xmlRegNewParserCtxt so a failed allocation cannot leave a NULL parser cursor\n- CVE-2026-86142: make xmlStrlen saturate above INT_MAX and reject the saturated\n  length in xmlXPtrEvalXPtrPart before sizing the buffer\n- CVE-2026-86143: check for integer overflow before passing a buffer length to the output write callback\n- CVE-2026-86144: propagate the document parse flags in xmlXIncludeProcess and xmlXIncludeProcessTree","modified":"2026-10-26T09:30:56.266772386Z","published":"2026-09-19T01:16:44Z","upstream":["CVE-2026-86140","CVE-2026-86141","CVE-2026-86142","CVE-2026-86143","CVE-2026-86144"],"references":[{"type":"ADVISORY","url":"https://errata.tuxcare.com/els_os/centos-stream8els/CLSA-2026-1789780589.html"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-86140"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-86141"},{"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:CentOS-Stream:8","purl":"pkg:rpm/tuxcare/libxml2?distro=centos-stream-8"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.9.7-18.el8.tuxcare.els13"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos-stream8els/CLSA-2026-1789780589.json"}},{"package":{"name":"libxml2-devel","ecosystem":"TuxCare:CentOS-Stream:8","purl":"pkg:rpm/tuxcare/libxml2-devel?distro=centos-stream-8"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.9.7-18.el8.tuxcare.els13"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos-stream8els/CLSA-2026-1789780589.json"}},{"package":{"name":"libxml2-static","ecosystem":"TuxCare:CentOS-Stream:8","purl":"pkg:rpm/tuxcare/libxml2-static?distro=centos-stream-8"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.9.7-18.el8.tuxcare.els13"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos-stream8els/CLSA-2026-1789780589.json"}},{"package":{"name":"python3-libxml2","ecosystem":"TuxCare:CentOS-Stream:8","purl":"pkg:rpm/tuxcare/python3-libxml2?distro=centos-stream-8"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.9.7-18.el8.tuxcare.els13"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos-stream8els/CLSA-2026-1789780589.json"}}],"schema_version":"1.9.0"}