CVE-2026-105206 ZITADEL before 4.17.3 Cross-Organization Authentication Method Enumeration via User Service

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...