{"schemaVersion":3,"id":"CVE-2026-105209","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"ZITADEL 3.x before 3.4.15 and 4.x before 4.17.1 contains an improper authorization vulnerability: when issuing passkey or passwordless enrollment codes, it checks only the organization in the x-zitadel-orgid header, not the target user's organization. Attackers with user-write permission in one organization can obtain an enrollment code for a user in another organization on the same instance and register their own authenticator to take over that account.","dates":{"published":"2026-10-04T13:10:03.314Z","modified":"2026-10-05T20:29:16.287Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":9.6,"severity":"critical","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N","computed":false,"selection":"backend-summary"},"metrics":[{"version":"4.0","versionLabel":"v4.0","source":"CVE.org","score":9.3,"severity":"critical","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":9.6,"severity":"critical","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N","exploitability":null,"impact":null,"computed":false},{"version":"4.0","versionLabel":"v4.0","source":"NVD","score":9.3,"severity":"critical","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":9.6,"severity":"critical","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.0022,"percentile":0.11829,"severity":"low","asOf":"2026-10-20T00:00:00.000Z","change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[{"date":"2026-10-05T00:00:00.000Z","score":0.0022,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.0022,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.0022,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.0022,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.0022,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.0022,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.0022,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.0022,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.0022,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.0022,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.0022,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.0022,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.0022,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.0022,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.0022,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.0022,"percentile":0.11829}],"last30":[{"date":"2026-10-05T00:00:00.000Z","score":0.0022,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.0022,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.0022,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.0022,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.0022,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.0022,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.0022,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.0022,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.0022,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.0022,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.0022,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.0022,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.0022,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.0022,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.0022,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.0022,"percentile":0.11829}]},"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":[{"id":"CWE-862","name":"Missing 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