CVE-2021-22879

Nextcloud Desktop Client prior to 3.1.3 is vulnerable to resource injection by way of missing validation of URLs, allowing a malicious server to execute remote commands. User interaction is needed for exploitation.

• CWE-99
• CWE-74

• https://github.com/nextcloud/desktop/pull/2906Patch, Third Party Advisory
• https://hackerone.com/reports/1078002Exploit, Third Party Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MTWBJAS5DJJIK7LLVBZZQTSJASUVIRVE/
• https://nextcloud.com/security/advisory/?id=NC-SA-2021-008Vendor Advisory
• https://security.gentoo.org/glsa/202105-37Third Party Advisory
• https://github.com/nextcloud/desktop/pull/2906Patch, Third Party Advisory
• https://hackerone.com/reports/1078002Exploit, Third Party Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MTWBJAS5DJJIK7LLVBZZQTSJASUVIRVE/
• https://nextcloud.com/security/advisory/?id=NC-SA-2021-008Vendor Advisory
• https://security.gentoo.org/glsa/202105-37Third Party Advisory

Published

Apr 14, 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.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
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