CVE-2023-28646

Nextcloud android is an android app for interfacing with the nextcloud home server ecosystem. In versions from 3.7.0 and before 3.24.1 an attacker that has access to the unlocked physical device can bypass the Nextcloud Android Pin/passcode protection via a thirdparty app. This allows to see meta information like sharer, sharees and activity of files. It is recommended that the Nextcloud Android app is upgraded to 3.24.1. There are no known workarounds for this vulnerability.

• CWE-281
• CWE-287

• https://github.com/nextcloud/android/pull/11242Issue Tracking, Patch
• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-c3rf-94h6-vj8vVendor Advisory
• https://github.com/nextcloud/android/pull/11242Issue Tracking, Patch
• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-c3rf-94h6-vj8vVendor Advisory

Published

Mar 30, 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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