CVE-2021-41181

Nextcloud talk is a self hosting messaging service. In versions prior to 12.3.0 the Nextcloud Android Talk application did not properly detect the lockscreen state when a call was incoming. If an attacker got physical access to the locked phone, and the victim received a phone call the attacker could gain access to the chat messages and files of the user. It is recommended that the Nextcloud Android Talk App is upgraded to 12.3.0. There are no known workarounds.

• CWE-200
• CWE-287

• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-497c-c8hx-6qcfThird Party Advisory
• https://github.com/nextcloud/talk-android/pull/1585Patch, Third Party Advisory
• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-497c-c8hx-6qcfThird Party Advisory
• https://github.com/nextcloud/talk-android/pull/1585Patch, Third Party Advisory

Published

Mar 8, 2022

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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