MEDIUM 5.3 NVD
CVE-2026-105206
ZITADEL 3.0.0 through 3.4.15 and 4.x before 4.17.3 contains an incorrect authorization flaw in the User Service API, which verifies user.read against the caller
ZITADEL 3.0.0 through 3.4.15 and 4.x before 4.17.3 contains an incorrect authorization flaw in the User Service API, which verifies user.read against the caller's organization rather than the organization owning the target user. An authenticated member holding org-scoped user.read can query GET /v2/users/{userId}/authentication_methods to learn which authentication method types users in other organizations have registered.
References
- https://github.com/zitadel/zitadel/security/advisories/GHSA-j344-gqv4-84ff
- https://www.vulncheck.com/advisories/zitadel-before-4.17.3-cross-organization-authenticati
This medium severity vulnerability with a CVSS score of 5.3 was published on 2026-10-04 via NVD.
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