CVE-2021-37629

Nextcloud Richdocuments is an open source collaborative office suite. In affected versions there is a lack of rate limiting on the Richdocuments OCS endpoint. This may have allowed an attacker to enumerate potentially valid share tokens. It is recommended that the Nextcloud Richdocuments app is upgraded to either 3.8.4 or 4.2.1 to resolve. For users unable to upgrade it is recommended that the Richdocuments application be disabled.

• CWE-200
• CWE-770

• https://github.com/nextcloud/richdocuments/pull/1663Third Party Advisory
• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-gvvr-h36p-8mjxThird Party Advisory
• https://hackerone.com/reports/1258750Permissions Required, Third Party Advisory
• https://github.com/nextcloud/richdocuments/pull/1663Third Party Advisory
• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-gvvr-h36p-8mjxThird Party Advisory
• https://hackerone.com/reports/1258750Permissions Required, Third Party Advisory

Published

Sep 7, 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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