BIT-nextcloud-2021-32727

See a problem?
Import Source
https://github.com/bitnami/vulndb/tree/main/data/nextcloud/BIT-nextcloud-2021-32727.json
JSON Data
https://api.test.osv.dev/v1/vulns/BIT-nextcloud-2021-32727
Aliases
Published
2026-07-12T23:47:43Z
Modified
2026-07-13T06:41:26Z
Summary
End-to-end encryption device setup did not verify public key
Details

Nextcloud Android Client is the Android client for Nextcloud. Clients using the Nextcloud end-to-end encryption feature download the public and private key via an API endpoint. In versions prior to 3.16.1, the Nextcloud Android client skipped a step that involved the client checking if a private key belonged to a previously downloaded public certificate. If the Nextcloud instance served a malicious public key, the data would be encrypted for this key and thus could be accessible to a malicious actor. The vulnerability is patched in version 3.16.1. As a workaround, do not add additional end-to-end encrypted devices to a user account.

Database specific 
{
    "cpes":  [
        "cpe:2.3:a:nextcloud:nextcloud:*:*:*:*:*:android:*:*"
    ],
    "severity":  "High"
}
References

Affected packages

Bitnami / nextcloud

Package

Name
nextcloud
Purl
pkg:bitnami/nextcloud

Affected ranges

Type
SEMVER
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
3.16.1

Database specific

source 
"https://github.com/bitnami/vulndb/tree/main/data/nextcloud/BIT-nextcloud-2021-32727.json"