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TI-2021-12326 Aliases CVE-2021-32658

Sensitive data may not be removed from storage on account removal

Priority LOW 21CWE-200Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
High
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

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

Summary

Nextcloud Android is the Android client for the Nextcloud open source home cloud system. Due to a timeout issue the Android client may not properly clean all sensitive data on account removal. This could include sensitive key material such as the End-to-End encryption keys. It is recommended that the Nextcloud Android App is upgraded to 3.16.1

Why it matters now

EPSS 0.00303 23rd percentileScored 2026-11-07
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-2021-32658

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