{"id":"CLSA-2026-1789576008","summary":"libxml2: Fix of CVE-2026-86138","details":"- CVE-2026-86138: add integer-overflow guards to the pool size calculations in\n  xmlDictAddString and xmlDictAddQString, and cap the name and prefix lengths in\n  xmlDictQLookup at INT_MAX/2, preventing an undersized allocation and heap\n  buffer overflow","modified":"2026-10-26T09:30:56.309313431Z","published":"2026-09-16T16:26:57Z","upstream":["CVE-2026-86138"],"references":[{"type":"ADVISORY","url":"https://errata.tuxcare.com/els_os/centos-stream8els/CLSA-2026-1789576008.html"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-86138"}],"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.els12"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos-stream8els/CLSA-2026-1789576008.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.els12"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos-stream8els/CLSA-2026-1789576008.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.els12"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos-stream8els/CLSA-2026-1789576008.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.els12"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos-stream8els/CLSA-2026-1789576008.json"}}],"schema_version":"1.9.0"}