CVE-2024-22403

Nextcloud server is a self hosted personal cloud system. In affected versions OAuth codes did not expire. When an attacker would get access to an authorization code they could authenticate at any time using the code. As of version 28.0.0 OAuth codes are invalidated after 10 minutes and will no longer be authenticated. To exploit this vulnerability an attacker would need to intercept an OAuth code from a user session. It is recommended that the Nextcloud Server is upgraded to 28.0.0. There are no known workarounds for this vulnerability.

• CWE-613

• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-wppc-f5g8-vx36Vendor Advisory
• https://github.com/nextcloud/server/pull/40766Patch, Vendor Advisory
• https://hackerone.com/reports/1784162Permissions Required, Third Party Advisory
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/S6PN4GVJ5TZUC6WSG4X3ZA3AMPBEKNAX/
• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-wppc-f5g8-vx36Vendor Advisory
• https://github.com/nextcloud/server/pull/40766Patch, Vendor Advisory
• https://hackerone.com/reports/1784162Permissions Required, Third Party Advisory
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/S6PN4GVJ5TZUC6WSG4X3ZA3AMPBEKNAX/

Published

Jan 18, 2024

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.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
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