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Fencer Vulns
low 3.9

CVE-2021-32695 json

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

published 2021-06-17 5 y ago modified 2026-09-08 2 mo 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

  • bitnami nextcloud 3.16.1
  • nextcloud nextcloud 3.16.1

Exploit prediction

0.88% chance of exploitation in the next 30 days, higher than 59% of all scored CVEs (FIRST EPSS, 2026-11-08).

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

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.