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CVE-2026-23511 Detail

Description

ZITADEL is an open source identity management platform. Prior to 4.9.1 and 3.4.6, a user enumeration vulnerability has been discovered in Zitadel's login interfaces. An unauthenticated attacker can exploit this flaw to confirm the existence of valid user accounts by iterating through usernames and userIDs. This vulnerability is fixed in 4.9.1 and 3.4.6.


Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://github.com/zitadel/zitadel/commit/b85ab69e4679b0268e2b0e9b4cd04e934af10dd2 GitHub, Inc.
https://github.com/zitadel/zitadel/commit/c300d4cc6a2775ab17ddfe76492f24170f8b858d GitHub, Inc.
https://github.com/zitadel/zitadel/releases/tag/v3.4.6 GitHub, Inc.
https://github.com/zitadel/zitadel/releases/tag/v4.9.1 GitHub, Inc.
https://github.com/zitadel/zitadel/security/advisories/GHSA-pvm5-9frx-264r GitHub, Inc.

Weakness Enumeration

CWE-ID CWE Name Source
CWE-204 Observable Response Discrepancy GitHub, Inc.  

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-23511
NVD Published Date:
01/15/2026
NVD Last Modified:
01/16/2026
Source:
GitHub, Inc.