Description
The open-source identity infrastructure software Zitadel allows administrators to disable the user self-registration. Versions 4.0.0 to 4.0.2, 3.0.0 to 3.3.6, and all versions prior to 2.71.15 are vulnerable to a username enumeration issue in the login interface. The login UI includes a security feature, Ignoring unknown usernames, that is intended to prevent username enumeration by returning a generic response for both valid and invalid usernames. This vulnerability allows an unauthenticated attacker to bypass this protection by submitting arbitrary userIDs to the select account page and distinguishing between valid and invalid accounts based on the system's response. For effective exploitation, an attacker needs to iterate through possible userIDs, but the impact can be limited by implementing rate limiting or similar measures. The issue has been patched in versions 4.0.3, 3.4.0, and 2.71.15.
INFO
Published Date :
2025-08-22T16:50:35.002Z
Last Modified :
2025-08-22T20:05:08.582Z
Source :
GitHub_M
AFFECTED PRODUCTS
The following products are affected by CVE-2025-57770 vulnerability.
| Vendors | Products |
|---|---|
| Zitadel |
|
REFERENCES
Here, you will find a curated list of external links that provide in-depth information to CVE-2025-57770.
