{"id":"CVE-2026-105209","title":"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…","summary":"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…","severity":"critical","cvss":9.6,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N","cwe":["CWE-862"],"vendor":"zitadel","product":"zitadel","affected":["zitadel < 4.17.1","zitadel < 3.4.15"],"published":"2026-10-04","updated":"2026-10-04","sourceUpdated":"2026-10-04T15:16:32.127","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-105209","references":[{"url":"https://github.com/zitadel/zitadel/security/advisories/GHSA-pq2q-2c6r-75c4","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/zitadel-before-3.4.15-and-4.17.1-cross-organization-account-takeover-via-passkey-enrollment","label":"disclosure@vulncheck.com"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-10-04T15:00:34.391Z","slug":"CVE-2026-105209","body":"## Overview\n\nZITADEL 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":53,"depthScoreParts":{"impact":52.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}