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TI-2021-12363 Aliases CVE-2021-32695

Malicious Android app could access Shared Preferences of the Nextcloud Android client

Priority LOW 20CWE-200Published · Updated

Key facts

Attack vector
Physical
Privileges required
Low
User interaction
Required
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
Low · Low · Low
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-200.

Summary

Nextcloud Android app is the Android client for Nextcloud. In versions prior to 3.16.1, a malicious app on the same device could have gotten access to the shared preferences of the Nextcloud Android application. This required user-interaction as a victim had to initiate the sharing flow and choose the malicious app. The shared preferences contain some limited private data such as push tokens and the account name. The vulnerability is patched in version 3.16.1.

Why it matters now

EPSS 0.00881 59th percentileScored 2026-11-08
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed security-advisories (nextcloud): 3.16.1

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
nextcloudsecurity-advisoriesbefore 3.16.13.16.1Patch availableCNA
  • security-advisories Vendornextcloud Affected before 3.16.1 Fixed in 3.16.1 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:nextcloud:nextcloud:*:*:*:*:*:android:*:*before 3.16.1Vulnerablenextcloud
  • cpe:2.3:a:nextcloud:nextcloud:*:*:*:*:*:android:*:* Versions before 3.16.1 Vulnerable ·nextcloud

Remediation

  • Fix · CNA security-advisories (nextcloud) Fixed in 3.16.1

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-32695

References

Exploit 1

Patch 1

Advisory 1

  • TI-2022-11704 Sensitive files/data exist after deletion of user account in Nextcloud Android CVSS 3.1LOW 3.3
  • TI-2022-08695 Improper Authentication in Nextcloud Android Files CVSS 3.1LOW 2.4
  • TI-2019-03862 SQL injection in com.nextcloud.client CVSS 3.1CRITICAL 9.8
  • TI-2021-19669 SQL Injection in FileContentProvider (GHSL-2021-1007) CVSS 3.1HIGH 7.5
  • TI-2023-13460 Nextcloud: Lack of authenticity of metadata keys allows a malicious server to gain access to E2EE folders CVSS 3.1MEDIUM 6.9
  • TI-2021-12395 End-to-end encryption device setup did not verify public key CVSS 3.1HIGH 7.5
See all 27 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences