{"schemaVersion":3,"id":"UBUNTU-CVE-2024-40896","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"In libxml2 2.11 before 2.11.9, 2.12 before 2.12.9, and 2.13 before 2.13.3, the SAX parser can produce events for external entities even if custom SAX handlers try to override entity content (by setting \"checked\"). This makes classic XXE attacks possible.","dates":{"published":"2024-12-23T17:15:00.000Z","modified":"2026-02-04T03:10:10.354Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":9.1,"severity":"critical","version":"3.1","versionLabel":"v3.1","source":"OSV · Ubuntu","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H","computed":true,"selection":"version-preference"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"OSV · Ubuntu","score":9.1,"severity":"critical","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H","exploitability":10,"impact":8.7,"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":"ubuntu","product":"libxml2","name":"libxml2","label":"libxml2","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/libxml2","purlType":"deb","versions":[{"text":"< 2.12.7+dfsg-3ubuntu0.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.12.7+dfsg-3ubuntu0.1","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/CVE-2024-40896","label":"ubuntu.com/security/CVE-2024-40896","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2024-40896","label":"www.cve.org/CVERecord?id=CVE-2024-40896","hostname":"www.cve.org","tags":["REPORT"]},{"url":"https://ubuntu.com/security/notices/USN-7215-1","label":"ubuntu.com/security/notices/USN-7215-1","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":["CVE-2024-40896","USN-7215-1"]},"timeline":[{"kind":"published","date":"2024-12-23T17:15:00.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-02-04T03:10:10.354Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":70,"level":"high","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-19T17:51:15.507Z","stale":false,"partial":false}}