CVE-2021-41166 MEDIUM

CVE-2021-41166: Permission bypass in Nextcloud Android App

Vendor Nextcloud
Product security-advisories
Weakness CWE-276
Published January 26, 2022
Last update April 23, 2025

CVSS base score

4.3/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality Low
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

What the vulnerability does

01Description

The Nextcloud Android app is the Android client for Nextcloud, a self-hosted productivity platform. An issue in versions prior to 3.17.1 may lead to sensitive information disclosure. An unauthorized app that does not have the otherwise required `MANAGE_DOCUMENTS` permission may view image thumbnails for images it does not have permission to view. Version 3.17.1 contains a patch. There are no known workarounds.

Key dates

02Disclosure timeline

January 26, 2022 CVE published
April 23, 2025 Record updated