CVE-2025-31124 Details
Description
Zitadel is open-source identity infrastructure software. ZITADEL administrators can enable a setting called "Ignoring unknown usernames" which helps mitigate attacks that try to guess/enumerate usernames. If enabled, ZITADEL will show the password prompt even if the user doesn't exist and report "Username or Password invalid". While the setting was correctly respected during the login flow, the user's username was normalized leading to a disclosure of the user's existence. This vulnerability is fixed in 2.71.6, 2.70.8, 2.69.9, 2.68.9, 2.67.13, 2.66.16, 2.65.7, 2.64.6, and 2.63.9.
A user enumeration vulnerability has been identified in Zitadel, an open-source identity infrastructure software. When the 'Ignoring unknown usernames' setting is enabled, Zitadel normalizes usernames during the login process. This normalization inadvertently discloses whether a username exists, despite the setting's intention to obscure such information. The vulnerability is present in Zitadel versions prior to 2.71.6, 2.70.8, 2.69.9, 2.68.9, 2.67.13, 2.66.16, 2.65.7, 2.64.6, and 2.63.9.
Users are advised to update Zitadel to version 2.71.6, 2.70.8, 2.69.9, 2.68.9, 2.67.13, 2.66.16, 2.65.7, 2.64.6, or 2.63.9.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Mar 31, 2025References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-200 | Exposure of Sensitive Information to an Unauthorized Actor | [email protected] |
| CWE-203 | Observable Discrepancy | [email protected] |
| CWE-204 | Observable Response Discrepancy | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| zitadel zitadel | < 2.63.9 >= 2.64.0, < 2.64.6 >= 2.65.0, < 2.65.7 >= 2.66.0, < 2.66.16 >= 2.67.0, < 2.67.13 >= 2.68.0, < 2.68.9 >= 2.69.0, < 2.69.9 >= 2.70.0, < 2.70.8 >= 2.71.0, < 2.71.6 |
CPE
Remediation
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Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Aug 26, 2025 | Initial Analysis | [email protected] |
| Mar 31, 2025 | New CVE Received | [email protected] |