{"schemaVersion":3,"id":"RHSA-2026:71641","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Red Hat Security Advisory: libxml2 security update","dates":{"published":"2026-09-25T10:15:41.000Z","modified":"2026-10-16T10:24:42.000Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":8.5,"severity":"high","version":"3.1","versionLabel":"v3.1","source":"OSV · Red hat","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H","computed":true,"selection":"version-preference"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"OSV · Red hat","score":8.5,"severity":"high","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H","exploitability":4.6,"impact":10,"computed":true}]},"epss":{"probability":null,"percentile":null,"severity":"unknown","asOf":null,"change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[],"last30":[]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[],"affected":[{"vendor":"redhat","product":"libxml2","name":"libxml2","label":"libxml2","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/libxml2","purlType":"rpm","versions":[{"text":"< 0:2.9.7-21.el8_10.9","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:2.9.7-21.el8_10.9","eol":null,"hubHref":null},{"vendor":"redhat","product":"libxml2-debuginfo","name":"libxml2-debuginfo","label":"libxml2-debuginfo","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/libxml2-debuginfo","purlType":"rpm","versions":[{"text":"< 0:2.9.7-21.el8_10.9","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:2.9.7-21.el8_10.9","eol":null,"hubHref":null},{"vendor":"redhat","product":"libxml2-debugsource","name":"libxml2-debugsource","label":"libxml2-debugsource","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/libxml2-debugsource","purlType":"rpm","versions":[{"text":"< 0:2.9.7-21.el8_10.9","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:2.9.7-21.el8_10.9","eol":null,"hubHref":null},{"vendor":"redhat","product":"libxml2-devel","name":"libxml2-devel","label":"libxml2-devel","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/libxml2-devel","purlType":"rpm","versions":[{"text":"< 0:2.9.7-21.el8_10.9","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:2.9.7-21.el8_10.9","eol":null,"hubHref":null},{"vendor":"redhat","product":"python3-libxml2","name":"python3-libxml2","label":"python3-libxml2","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/python3-libxml2","purlType":"rpm","versions":[{"text":"< 0:2.9.7-21.el8_10.9","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:2.9.7-21.el8_10.9","eol":null,"hubHref":null},{"vendor":"redhat","product":"python3-libxml2-debuginfo","name":"python3-libxml2-debuginfo","label":"python3-libxml2-debuginfo","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/python3-libxml2-debuginfo","purlType":"rpm","versions":[{"text":"< 0:2.9.7-21.el8_10.9","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:2.9.7-21.el8_10.9","eol":null,"hubHref":null}],"affectedCount":6,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://access.redhat.com/errata/RHSA-2026:71641","label":"access.redhat.com/errata/RHSA-2026:71641","hostname":"access.redhat.com","tags":["Advisory"]},{"url":"https://access.redhat.com/security/updates/classification/#important","label":"access.redhat.com/security/updates/classification/","hostname":"access.redhat.com","tags":["ARTICLE"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2528986","label":"bugzilla.redhat.com/show_bug.cgi?id=2528986","hostname":"bugzilla.redhat.com","tags":["REPORT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2528987","label":"bugzilla.redhat.com/show_bug.cgi?id=2528987","hostname":"bugzilla.redhat.com","tags":["REPORT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2528989","label":"bugzilla.redhat.com/show_bug.cgi?id=2528989","hostname":"bugzilla.redhat.com","tags":["REPORT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2528992","label":"bugzilla.redhat.com/show_bug.cgi?id=2528992","hostname":"bugzilla.redhat.com","tags":["REPORT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2529697","label":"bugzilla.redhat.com/show_bug.cgi?id=2529697","hostname":"bugzilla.redhat.com","tags":["REPORT"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_71641.json","label":"security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_71641.json","hostname":"security.access.redhat.com","tags":["Advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-74860","label":"access.redhat.com/security/cve/CVE-2026-74860","hostname":"access.redhat.com","tags":["REPORT"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-74860","label":"www.cve.org/CVERecord?id=CVE-2026-74860","hostname":"www.cve.org","tags":["Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74860","label":"nvd.nist.gov/vuln/detail/CVE-2026-74860","hostname":"nvd.nist.gov","tags":["Advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-86138","label":"access.redhat.com/security/cve/CVE-2026-86138","hostname":"access.redhat.com","tags":["REPORT"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-86138","label":"www.cve.org/CVERecord?id=CVE-2026-86138","hostname":"www.cve.org","tags":["Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-86138","label":"nvd.nist.gov/vuln/detail/CVE-2026-86138","hostname":"nvd.nist.gov","tags":["Advisory"]},{"url":"https://github.com/GNOME/libxml2/commit/a4cba4b5b5a8c42e155ed42d2d2a44955465a2e4","label":"github.com/GNOME/libxml2/commit/a4cba4b5b5a8c42e155ed42d2d2a44955465a2e4","hostname":"github.com","tags":["ARTICLE"]},{"url":"https://github.com/GNOME/libxml2/compare/v2.15.3...v2.15.4","label":"github.com/GNOME/libxml2/compare/v2.15.3...v2.15.4","hostname":"github.com","tags":["ARTICLE"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-86140","label":"access.redhat.com/security/cve/CVE-2026-86140","hostname":"access.redhat.com","tags":["REPORT"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-86140","label":"www.cve.org/CVERecord?id=CVE-2026-86140","hostname":"www.cve.org","tags":["Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-86140","label":"nvd.nist.gov/vuln/detail/CVE-2026-86140","hostname":"nvd.nist.gov","tags":["Advisory"]},{"url":"https://github.com/GNOME/libxml2/commit/d1686f91dbda141a752200419d35639fd6b38340","label":"github.com/GNOME/libxml2/commit/d1686f91dbda141a752200419d35639fd6b38340","hostname":"github.com","tags":["ARTICLE"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-86143","label":"access.redhat.com/security/cve/CVE-2026-86143","hostname":"access.redhat.com","tags":["REPORT"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-86143","label":"www.cve.org/CVERecord?id=CVE-2026-86143","hostname":"www.cve.org","tags":["Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-86143","label":"nvd.nist.gov/vuln/detail/CVE-2026-86143","hostname":"nvd.nist.gov","tags":["Advisory"]},{"url":"https://github.com/GNOME/libxml2/commit/90f293ba74d28b1d570920382e707586f68ebf35","label":"github.com/GNOME/libxml2/commit/90f293ba74d28b1d570920382e707586f68ebf35","hostname":"github.com","tags":["ARTICLE"]},{"url":"https://gitlab.gnome.org/GNOME/libxml2/-/work_items/1111","label":"gitlab.gnome.org/GNOME/libxml2/-/work_items/1111","hostname":"gitlab.gnome.org","tags":["ARTICLE"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-86144","label":"access.redhat.com/security/cve/CVE-2026-86144","hostname":"access.redhat.com","tags":["REPORT"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-86144","label":"www.cve.org/CVERecord?id=CVE-2026-86144","hostname":"www.cve.org","tags":["Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-86144","label":"nvd.nist.gov/vuln/detail/CVE-2026-86144","hostname":"nvd.nist.gov","tags":["Advisory"]},{"url":"https://github.com/GNOME/libxml2/commit/b63cd517afecb76582dd9488c55e54ceaf50de61","label":"github.com/GNOME/libxml2/commit/b63cd517afecb76582dd9488c55e54ceaf50de61","hostname":"github.com","tags":["ARTICLE"]}],"lineage":{"upstream":["CVE-2026-74860","CVE-2026-86138","CVE-2026-86140","CVE-2026-86143","CVE-2026-86144"],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2026-09-25T10:15:41.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-10-16T10:24:42.000Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":34,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T19:40:21.178Z","stale":false,"partial":false}}