{"cve":"CVE-2021-41166","nvd":{"published":"2022-01-26T23:15:08.217","modified":"2026-06-17T04:08:00.553","status":"Modified","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","score":5.3},"cwes":["CWE-276"],"references":["https://github.com/nextcloud/android/commit/aa47197109970b8449c4e44601eba36e3481b086","https://github.com/nextcloud/android/commit/b6ecf515b38c2d82d32743f27236534f3e03ee0c","https://github.com/nextcloud/security-advisories/security/advisories/GHSA-wrwg-jwpg-r3c4","https://hackerone.com/reports/1358597","https://github.com/nextcloud/android/commit/aa47197109970b8449c4e44601eba36e3481b086"],"products":["nextcloud:nextcloud"],"source":"nvd","synced_at":"2026-10-19T21:27:20.926095847+00:00"},"epss":{"cve":"CVE-2021-41166","score":0.00948,"percentile":0.61195,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}