CVE catalog

CVE-2023-28999

nextcloud-desktop: CVE-2023-28999

Severity: Medium
Published: Apr 4, 2023, 1:15:09 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.68% · Oct 25, 2026

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.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	nextcloud-desktop	sid	`35.0.0-1`	fixed
Debian	nextcloud-desktop	forky	`35.0.0-1`	fixed
Debian	nextcloud-desktop	trixie	`3.16.7-1~deb13u1`	fixed
Debian	nextcloud-desktop	bookworm	`3.7.3-1+deb12u2`	vulnerable

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	nextcloud-desktop	source	sid	`3.9.0-1`	not yet assigned	Not reported	[1034184]
Debian	nextcloud-desktop	source	forky	`3.9.0-1`	not yet assigned	Not reported	[1034184]
Debian	nextcloud-desktop	source	trixie	`3.9.0-1`	not yet assigned	Not reported	[1034184]
Debian	nextcloud-desktop	source	bookworm	`(unfixed)`	not yet assigned	Not reported	[1034184]

[Debian bug #1034184]

Notes

[bookworm] nextcloud-desktop: Minor issue, too intrusive to backport

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database]