Nextcloud Android App (com.nextcloud.client) before v3.16.0 is vulnerable to information disclosure due to searches for sharees being perfo…

published 2021-06-11 5 y ago modified 2026-09-08 2 mo ago also BIT-nextcloud-2021-22905 , EUVD-2021-10034 , GHSA-22v9-q3r6-x7cj

cvss: 6.5; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.4%; EPSS 1.4% chance of exploitation in 30 days, percentile 72%
public exploits: 0; none known

Nextcloud Android App (com.nextcloud.client) before v3.16.0 is vulnerable to information disclosure due to searches for sharees being performed by default on the lookup server instead of only using the local Nextcloud server unless a global search has been explicitly chosen by the user.

Patch / fix

fixed in 2

bitnami nextcloud 3.16.0
nextcloud nextcloud 3.16.0

Exploit prediction

1.37% chance of exploitation in the next 30 days, higher than 72% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

hackerone.com https://hackerone.com/reports/1167916 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.1	6.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
NVD	2.0	4.3	AV:N/AC:M/Au:N/C:P/I:N/A:N
OSV	3.1	6.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Affected packages

ecosystem	package	affected	fixed in
bitnami	nextcloud	<3.16.0	3.16.0

Affected products

n/a Nextcloud Android App (com.nextcloud.client)

Classification

Weakness

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

References

hackerone.com /reports/1167916
exploit, issue-tracking, third-party-advisory, advisory
github.com /nextcloud/security-advisories/security/advisories/GHSA-22v9-q3r6-x7cj
third-party-advisory, advisory
nvd.nist.gov /vuln/detail/CVE-2021-22905
web

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.

Summary