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EUVD-2026-197844

fkie_cve-2024-49757

The open-source identity infrastructure software Zitadel allows administrators to disable the user self-registration. Due to a missing security check in versions prior to 2.64.0, 2.63.5, 2.62.7, 2.61.4, 2.60.4, 2.59.5, and 2.58.7, disabling the "User Registration allowed" option only hid the registration button on the login page. Users could bypass this restriction by directly accessing the registration URL (/ui/login/loginname) and register a user that way. Versions 2.64.0, 2.63.5, 2.62.7, 2.61.4, 2.60.4, 2.59.5, and 2.58.7 contain a patch. No known workarounds are available.

GHSA-3rmw-76m6-4gjc — User Registration Bypass in Zitadel

Affected: Go: github.com/zitadel/zitadel

### Impact Zitadel allows administrators to disable the user self-registration. Due to a missing security check in versions prior to 2.63.4, disabling the "User Registration allowed" option only hid the registration button on the login page. Users could bypass this restriction by directly accessing the registration URL (/ui/login/loginname) and register a user that way.

### Patches

2.x versions are fixed on >= [2.64.0](https://github.com/zitadel/zitadel/releases/tag/v2.64.0) 2.63.x versions are fixed on >= [2.63.5](https://github.com/zitadel/zitadel/releases/tag/v2.63.5) 2.62.x versions are fixed on >= [2.62.7](https://github.com/zitadel/zitadel/releases/tag/v2.62.7) 2.61.x versions are fixed on >= [2.61.4](https://github.com/zitadel/zitadel/releases/tag/v2.61.4) 2.60.x versions are fixed on >= [2.60.4](https://github.com/zitadel/zitadel/releases/tag/v2.60.4) 2.59.x versions are fixed on >= [2.59.5](https://github.com/zitadel/zitadel/releases/tag/v2.59.5) 2.58.x versions are fixed on >= [2.58.7](https://github.com/zitadel/zitadel/releases/tag/v2.58.7)

### Workarounds Updating to the patched version is the recommended solution.

### Questions If you have any questions or comments about this advisory, please email us at [security@zitadel.com](mailto:security@zitadel.com)

### Credits Thanks to @sevensolutions and @evilgensec for disclosing this!

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SUSE-SU-2024:3911-1 — Security update for govulncheck-vulndb

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