{"schemaVersion":3,"id":"USN-8173-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"policykit-1 vulnerabilities\n\nIt was discovered that polkit incorrectly handled nested elements in XML\npolicy files. If an administrator were tricked into installing a malicious\npolicy file, a remote attacker could possibly use this issue to cause\npolkit to crash, resulting in a denial of service. (CVE-2025-7519)\n\nPavel Kohout discovered that the polkit polkit-agent-helper-1 utility\nincorrectly handled long input. A local attacker could possibly use this\nissue to cause polkit to crash, resulting in a denial of service.\n(CVE-2026-4897)","dates":{"published":"2026-04-14T08:02:28.000Z","modified":"2026-04-27T18:48:00.224Z","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":"policykit-1","name":"policykit-1","label":"policykit-1","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/policykit-1","purlType":"deb","versions":[{"text":"< 0.105-33ubuntu0.1","noFixRecorded":false,"fixedIn":null},{"text":"< 124-2ubuntu1.24.04.3","noFixRecorded":false,"fixedIn":null},{"text":"< 126-2ubuntu0.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0.105-33ubuntu0.1 | < 124-2ubuntu1.24.04.3 | < 126-2ubuntu0.1","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-8173-1","label":"ubuntu.com/security/notices/USN-8173-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2025-7519","label":"ubuntu.com/security/CVE-2025-7519","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-4897","label":"ubuntu.com/security/CVE-2026-4897","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2025-7519","CVE-2026-4897"],"downstream":[],"duplicates":[],"related":["CVE-2025-7519","CVE-2026-4897"]},"timeline":[{"kind":"published","date":"2026-04-14T08:02:28.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-04-27T18:48:00.224Z","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":"2026-10-20T17:01:00.666Z","stale":false,"partial":false}}