Home/CVE/The Nextcloud Android app is the Android client for Nextcloud, a self-hosted productivity platform. An issue in versions
CVE

CVE-2021-41166

The Nextcloud Android app is the Android client for Nextcloud, a self-hosted productivity platform. An issue in versions

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.

MEDIUM · CVSS 4.3 EPSS 0.0023
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-276Incorrect Default Permissions
CWE-276Incorrect Default Permissions
▤

Affected Products & Versions

1
nextcloud< 3.17.1
▣

Scoring & Timeline

4.3
MEDIUM · CVSS v3.1 · security-advisories@github.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD26 Jan 2022 · 11:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/nextcloud/android/commit/aa47197109970b8449c4e44601eba36e3481b086PatchThird Party Advisory
https://github.com/nextcloud/android/commit/b6ecf515b38c2d82d32743f27236534f3e03ee0cPatchThird Party Advisory
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-wrwg-jwpg-r3c4PatchThird Party Advisory
https://hackerone.com/reports/1358597Permissions Required
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