CVE Alert: CVE-2025-31124

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Vulnerability Summary: CVE-2025-31124

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.

Affected Endpoints:

No affected endpoints listed.

Published Date:

3/31/2025, 8:15:15 PM

⚠️ CVSS Score:

CVSS v3 Score: 5.3 (Medium)

Exploit Status:

Not Exploited

References:

Recommended Action:

No proposed action available. Please refer to vendor documentation for updates.


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