Answer in brief
CVE-2026-105209 records a Critical severity (CVSS 9.3) vulnerability in ZITADEL before 3.4.15 and 4.17.1 Cross-Organization Account Takeover via Passkey Enrollment. The current sources do not mark it as known exploited. The current feed maps zitadel/zitadel (generic), zitadel/zitadel (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 9.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps zitadel/zitadel (generic), zitadel/zitadel (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| zitadel/zitadelgeneric | >=0 <4.17.1 | 4.17.1 |
| zitadel/zitadelgeneric | >=0 <3.4.15 | 3.4.15 |
Published upstream
Oct 4, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 4, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 4, 2026
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.
Quoted source text, attributed separately from HOL analysis.