CVE-2025-31124
Zitadel allows User Enumeration by loginname attribute normalization
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.
INFO
Published Date :
March 31, 2025, 8:15 p.m.
Last Modified :
Aug. 26, 2025, 5:15 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update Zitadel to version 2.71.6 or later.
- Apply patches for versions 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.
- Ensure the 'Ignoring unknown usernames' setting is configured correctly.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-31124.
| URL | Resource |
|---|---|
| https://github.com/zitadel/zitadel/commit/14de8ecac2afafee4975ed7ac26f3ca4a2b0f82c | Patch |
| https://github.com/zitadel/zitadel/releases/tag/v2.63.9 | Release Notes |
| https://github.com/zitadel/zitadel/releases/tag/v2.64.6 | Release Notes |
| https://github.com/zitadel/zitadel/releases/tag/v2.65.7 | Release Notes |
| https://github.com/zitadel/zitadel/releases/tag/v2.66.16 | Release Notes |
| https://github.com/zitadel/zitadel/releases/tag/v2.67.13 | Release Notes |
| https://github.com/zitadel/zitadel/releases/tag/v2.68.9 | Release Notes |
| https://github.com/zitadel/zitadel/releases/tag/v2.69.9 | Release Notes |
| https://github.com/zitadel/zitadel/releases/tag/v2.70.8 | Release Notes |
| https://github.com/zitadel/zitadel/releases/tag/v2.71.6 | Release Notes |
| https://github.com/zitadel/zitadel/security/advisories/GHSA-67m4-8g4w-633q | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-31124 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-31124
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-31124 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-31124 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Aug. 26, 2025
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:zitadel:zitadel:*:*:*:*:*:*:*:* versions from (including) 2.64.0 up to (excluding) 2.64.6 *cpe:2.3:a:zitadel:zitadel:*:*:*:*:*:*:*:* versions from (including) 2.65.0 up to (excluding) 2.65.7 *cpe:2.3:a:zitadel:zitadel:*:*:*:*:*:*:*:* versions from (including) 2.66.0 up to (excluding) 2.66.16 *cpe:2.3:a:zitadel:zitadel:*:*:*:*:*:*:*:* versions from (including) 2.67.0 up to (excluding) 2.67.13 *cpe:2.3:a:zitadel:zitadel:*:*:*:*:*:*:*:* versions from (including) 2.68.0 up to (excluding) 2.68.9 *cpe:2.3:a:zitadel:zitadel:*:*:*:*:*:*:*:* versions from (including) 2.69.0 up to (excluding) 2.69.9 *cpe:2.3:a:zitadel:zitadel:*:*:*:*:*:*:*:* versions up to (excluding) 2.63.9 *cpe:2.3:a:zitadel:zitadel:*:*:*:*:*:*:*:* versions from (including) 2.70.0 up to (excluding) 2.70.8 *cpe:2.3:a:zitadel:zitadel:*:*:*:*:*:*:*:* versions from (including) 2.71.0 up to (excluding) 2.71.6 Added Reference Type GitHub, Inc.: https://github.com/zitadel/zitadel/commit/14de8ecac2afafee4975ed7ac26f3ca4a2b0f82c Types: Patch Added Reference Type GitHub, Inc.: https://github.com/zitadel/zitadel/releases/tag/v2.63.9 Types: Release Notes Added Reference Type GitHub, Inc.: https://github.com/zitadel/zitadel/releases/tag/v2.64.6 Types: Release Notes Added Reference Type GitHub, Inc.: https://github.com/zitadel/zitadel/releases/tag/v2.65.7 Types: Release Notes Added Reference Type GitHub, Inc.: https://github.com/zitadel/zitadel/releases/tag/v2.66.16 Types: Release Notes Added Reference Type GitHub, Inc.: https://github.com/zitadel/zitadel/releases/tag/v2.67.13 Types: Release Notes Added Reference Type GitHub, Inc.: https://github.com/zitadel/zitadel/releases/tag/v2.68.9 Types: Release Notes Added Reference Type GitHub, Inc.: https://github.com/zitadel/zitadel/releases/tag/v2.69.9 Types: Release Notes Added Reference Type GitHub, Inc.: https://github.com/zitadel/zitadel/releases/tag/v2.70.8 Types: Release Notes Added Reference Type GitHub, Inc.: https://github.com/zitadel/zitadel/releases/tag/v2.71.6 Types: Release Notes Added Reference Type GitHub, Inc.: https://github.com/zitadel/zitadel/security/advisories/GHSA-67m4-8g4w-633q Types: Vendor Advisory -
New CVE Received by [email protected]
Mar. 31, 2025
Action Type Old Value New Value Added 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. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Added CWE CWE-200 Added CWE CWE-203 Added CWE CWE-204 Added Reference https://github.com/zitadel/zitadel/commit/14de8ecac2afafee4975ed7ac26f3ca4a2b0f82c Added Reference https://github.com/zitadel/zitadel/releases/tag/v2.63.9 Added Reference https://github.com/zitadel/zitadel/releases/tag/v2.64.6 Added Reference https://github.com/zitadel/zitadel/releases/tag/v2.65.7 Added Reference https://github.com/zitadel/zitadel/releases/tag/v2.66.16 Added Reference https://github.com/zitadel/zitadel/releases/tag/v2.67.13 Added Reference https://github.com/zitadel/zitadel/releases/tag/v2.68.9 Added Reference https://github.com/zitadel/zitadel/releases/tag/v2.69.9 Added Reference https://github.com/zitadel/zitadel/releases/tag/v2.70.8 Added Reference https://github.com/zitadel/zitadel/releases/tag/v2.71.6 Added Reference https://github.com/zitadel/zitadel/security/advisories/GHSA-67m4-8g4w-633q