CVE-2022-41969 Nextcloud Server has no password length limit when creating a user as an administrator

Low 2.4 Published 1 Dec 2022 Updated 23 Apr 2025

Administrators can cause a limited denial of service by creating users with excessively long passwords due to missing length limits.

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2022-41969?

CVE-2022-41969 is a low-severity denial of service vulnerability in Nextcloud Nextcloud Server, published on 1 Dec 2022. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

Nextcloud Server is an open source personal cloud server. Prior to versions 23.0.11, 24.0.7, and 25.0.0, there is no password length limit when creating a user as an administrator. An administrator can cause a limited DoS attack against their own server. Versions 23.0.11, 24.0.7, and 25.0.0 contain a fix for the issue. As a workaround, don't create user accounts with long passwords.

Weakness: CWE-521, CWE-400

Which versions are affected by CVE-2022-41969?

It affects 1 product.

Products include Nextcloud Nextcloud Server.

How do I fix CVE-2022-41969?

No fix has been published for CVE-2022-41969 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2022-41969 being exploited?

There is no known exploitation of CVE-2022-41969 in the wild and no public exploit code.

All Nextcloud Nextcloud Server vulnerabilities

Sources

Also known as GHSA-4gm7-j7wg-m4fx.