Missing Encryption of Sensitive Data Affecting nextcloud-desktop package, versions <3.9.0-1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.68% (48th percentile)

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  • Snyk IDSNYK-DEBIAN14-NEXTCLOUDDESKTOP-11761925
  • published10 Aug 2025
  • disclosed4 Apr 2023

Introduced: 4 Apr 2023

CVE-2023-28999  (opens in a new tab)
CWE-311  (opens in a new tab)

How to fix?

Upgrade Debian:14 nextcloud-desktop to version 3.9.0-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream nextcloud-desktop package and not the nextcloud-desktop package as distributed by Debian. See How to fix? for Debian:14 relevant fixed versions and status.

Nextcloud is an open-source productivity platform. In Nextcloud Desktop client 3.0.0 until 3.8.0, Nextcloud Android app 3.13.0 until 3.25.0, and Nextcloud iOS app 3.0.5 until 4.8.0, a malicious server administrator can gain full access to an end-to-end encrypted folder. They can decrypt files, recover the folder structure and add new files.​ This issue is fixed in Nextcloud Desktop 3.8.0, Nextcloud Android 3.25.0, and Nextcloud iOS 4.8.0. No known workarounds are available.

CVSS Base Scores

version 3.1