CVE-2023-32320

Nextcloud Server is a data storage system for Nextcloud, a self-hosted productivity platform. When multiple requests are sent in parallel, all of them were executed even if the amount of faulty requests succeeded the limit by the time the response was sent to the client. This allowed someone to send as many requests the server could handle in parallel to bruteforce protected details instead of the configured limit, default 8. Nextcloud Server versions 25.0.7 and 26.0.2 and Nextcloud Enterprise Server versions 21.0.9.12, 22.2.10.12, 23.0.12.7, 24.0.12.2, 25.0.7 and 26.0.2 contain patches for this issue.

• CWE-307

• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-qphh-6xh7-vffgPatch, Vendor Advisory
• https://github.com/nextcloud/server/pull/38274Patch
• https://hackerone.com/reports/1918525Permissions Required
• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-qphh-6xh7-vffgPatch, Vendor Advisory
• https://github.com/nextcloud/server/pull/38274Patch
• https://hackerone.com/reports/1918525Permissions Required

Published

Jun 22, 2023

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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