CVE-2021-32695 json
Malicious Android app could access Shared Preferences of the Nextcloud Android client
published 5y ago modified 2mo ago also BIT-nextcloud-2021-32695 , EUVD-2021-19496 , GHSA-25m9-cf6c-qf2c
- cvss
- 3.9
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.9%
- EPSS 0.9% chance of exploitation in 30 days, percentile 59%
- public exploits
- 0
- none known
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.
Patch / fix
Is CVE-2021-32695 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerExploit prediction
0.88% chance of exploitation in the next 30 days, higher than 59% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- hackerone.com https://hackerone.com/reports/1142918 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 3.9 | CVSS:3.1/AV:P/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L |
| NVD | 3.1 | 3.3 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:P/I:N/A:N |
| OSV | 3.1 | 3.3 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| bitnami | nextcloud | <3.16.1 |
3.16.1 |
Affected products
- nextcloud security-advisories
Classification
- Weakness
-
- CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
References
-
github.com
/nextcloud/android/pull/8433
patch, third-party-advisory, advisory
-
hackerone.com
/reports/1142918
exploit, third-party-advisory, advisory
-
github.com
/nextcloud/security-advisories/security/advisories/GHSA-25m9-cf6c-qf2c
third-party-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2021-32695
web
Sources
- CVE List CVE-2021-32695
- NVD CVE-2021-32695
- OSV BIT-nextcloud-2021-32695
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