CVE-2021-32657

Nextcloud Server is a Nextcloud package that handles data storage. In versions of Nextcloud Server prior to 10.0.11, 20.0.10, and 21.0.2, a malicious user may be able to break the user administration page. This would disallow administrators to administrate users on the Nextcloud instance. The vulnerability is fixed in versions 19.0.11, 20.0.10, and 21.0.2. As a workaround, administrators can use the OCC command line tool to administrate the Nextcloud users.

• CWE-400

• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-fx62-q47f-f665Third Party Advisory
• https://hackerone.com/reports/1147611Third Party Advisory
• https://security.gentoo.org/glsa/202208-17Third Party Advisory
• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-fx62-q47f-f665Third Party Advisory
• https://hackerone.com/reports/1147611Third Party Advisory
• https://security.gentoo.org/glsa/202208-17Third Party Advisory

Published

Jun 1, 2021

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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