CVE-2026-23511

MEDIUM
2026-01-15 [email protected] GHSA-pvm5-9frx-264r
5.3
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

Lifecycle Timeline

3
Analysis Generated
Mar 12, 2026 - 21:54 vuln.today
Patch Released
Jan 20, 2026 - 16:44 nvd
Patch available
CVE Published
Jan 15, 2026 - 20:16 nvd
MEDIUM 5.3

Tags

Information Disclosure Zitadel Suse

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.

Analysis

Zitadel versions prior to 4.9.1 and 3.4.6 contain a user enumeration vulnerability in their login interfaces that allows unauthenticated attackers to discover valid user accounts by testing usernames and user IDs. An attacker can leverage this information disclosure to build lists of existing users for targeted attacks against the identity management platform. …

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Remediation

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Vendor patch is available.

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Priority Score

27
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +26
POC: 0

Vendor Status

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CVE-2026-23511 vulnerability details – vuln.today
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