{"schemaVersion":3,"id":"USN-8018-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"python3.14, python3.13, python3.12, python3.11, python3.10, python3.9,\npython3.8, python3.7, python3.6, python3.5, python3.4 vulnerabilities\n\nDenis Ledoux discovered that Python incorrectly parsed email message\nheaders. An attacker could possibly use this issue to inject arbitrary\nheaders into email messages. This issue only affected python3.6, python3.7,\npython3.8, python3.9, python3.10, python3.11, python3.12, python3.13, and\npython3.14 packages. (CVE-2025-11468)\n\nJacob Walls, Shai Berger, and Natalia Bidart discovered that Python\ninefficiently parsed XML input with quadratic complexity. An attacker could\npossibly use this issue to cause a denial of service. (CVE-2025-12084)\n\nIt was discovered that Python incorrectly parsed malicious plist files. An\nattacker could possibly use this issue to cause Python to use excessive\nresources, leading to a denial of service. This issue only affected\npython3.5, python3.6, python3.7, python3.8, python3.9, python3.10,\npython3.11, python3.12, python3.13, and python3.14 packages.\n(CVE-2025-13837)\n\nOmar Hasan discovered that Python incorrectly parsed URL mediatypes. An\nattacker could possibly use this issue to inject arbitrary HTTP headers.\n(CVE-2025-15282)\n\nOmar Hasan discovered that Python incorrectly parsed malicious IMAP inputs.\nAn attacker could possibly use this issue to inject arbitrary IMAP\ncommands. (CVE-2025-15366)\n\nOmar Hasan discovered that Python incorrectly parsed malicious POP3 inputs.\nAn attacker could possibly use this issue to inject arbitrary POP3\ncommands. (CVE-2025-15367)\n\nOmar Hasan discovered that Python incorrectly parsed malicious HTTP cookie\nheaders. An attacker could possibly use this issue to inject arbitrary HTTP\nheaders. (CVE-2026-0672)\n\nOmar Hasan discovered that Python incorrectly parsed malicious HTTP header\nnames and values. An attacker could possibly use this issue to inject\narbitrary HTTP headers. (CVE-2026-0865)","dates":{"published":"2026-02-05T14:05:07.000Z","modified":"2026-06-25T13:32:32.015Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":null,"severity":"unknown","version":null,"versionLabel":null,"source":null,"vector":null,"computed":false,"selection":"none"},"metrics":[]},"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":"python3.10","name":"python3.10","label":"python3.10","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/python3.10","purlType":"deb","versions":[{"text":"< 3.10.12-1~22.04.14","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3.10.12-1~22.04.14","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"python3.11","name":"python3.11","label":"python3.11","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/python3.11","purlType":"deb","versions":[{"text":"< 3.11.0~rc1-1~22.04.1~esm8","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3.11.0~rc1-1~22.04.1~esm8","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"python3.12","name":"python3.12","label":"python3.12","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/python3.12","purlType":"deb","versions":[{"text":"< 3.12.3-1ubuntu0.11","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3.12.3-1ubuntu0.11","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"python3.13","name":"python3.13","label":"python3.13","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/python3.13","purlType":"deb","versions":[{"text":"< 3.13.7-1ubuntu0.3","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3.13.7-1ubuntu0.3","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"python3.14","name":"python3.14","label":"python3.14","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/python3.14","purlType":"deb","versions":[{"text":"< 3.14.0-1ubuntu0.2","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3.14.0-1ubuntu0.2","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"python3.4","name":"python3.4","label":"python3.4","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/python3.4","purlType":"deb","versions":[{"text":"< 3.4.3-1ubuntu1~14.04.7+esm19","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3.4.3-1ubuntu1~14.04.7+esm19","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"python3.5","name":"python3.5","label":"python3.5","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/python3.5","purlType":"deb","versions":[{"text":"< 3.5.2-2ubuntu0~16.04.4~14.04.1+esm9","noFixRecorded":false,"fixedIn":null},{"text":"< 3.5.2-2ubuntu0~16.04.13+esm21","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3.5.2-2ubuntu0~16.04.4~14.04.1+esm9 | < 3.5.2-2ubuntu0~16.04.13+esm21","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"python3.6","name":"python3.6","label":"python3.6","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/python3.6","purlType":"deb","versions":[{"text":"< 3.6.9-1~18.04ubuntu1.13+esm8","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3.6.9-1~18.04ubuntu1.13+esm8","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"python3.7","name":"python3.7","label":"python3.7","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/python3.7","purlType":"deb","versions":[{"text":"< 3.7.5-2ubuntu1~18.04.2+esm9","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3.7.5-2ubuntu1~18.04.2+esm9","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"python3.8","name":"python3.8","label":"python3.8","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/python3.8","purlType":"deb","versions":[{"text":"< 3.8.0-3ubuntu1~18.04.2+esm9","noFixRecorded":false,"fixedIn":null},{"text":"< 3.8.10-0ubuntu1~20.04.18+esm5","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3.8.0-3ubuntu1~18.04.2+esm9 | < 3.8.10-0ubuntu1~20.04.18+esm5","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"python3.9","name":"python3.9","label":"python3.9","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/python3.9","purlType":"deb","versions":[{"text":"< 3.9.5-3ubuntu0~20.04.1+esm9","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3.9.5-3ubuntu0~20.04.1+esm9","eol":null,"hubHref":null}],"affectedCount":11,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-8018-1","label":"ubuntu.com/security/notices/USN-8018-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2025-11468","label":"ubuntu.com/security/CVE-2025-11468","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2025-12084","label":"ubuntu.com/security/CVE-2025-12084","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2025-13837","label":"ubuntu.com/security/CVE-2025-13837","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2025-15282","label":"ubuntu.com/security/CVE-2025-15282","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2025-15366","label":"ubuntu.com/security/CVE-2025-15366","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2025-15367","label":"ubuntu.com/security/CVE-2025-15367","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-0672","label":"ubuntu.com/security/CVE-2026-0672","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-0865","label":"ubuntu.com/security/CVE-2026-0865","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":["CVE-2025-11468","CVE-2025-12084","CVE-2025-13837","CVE-2025-15282","CVE-2025-15366","CVE-2025-15367","CVE-2026-0672","CVE-2026-0865"]},"timeline":[{"kind":"published","date":"2026-02-05T14:05:07.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-06-25T13:32:32.015Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":0,"level":"minimal","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T18:46:16.854Z","stale":false,"partial":false}}