CVE-2026-82985 Information disclosure in Server
An attacker can view metadata of files in the album owner's folders by exploiting how shared smart albums use the viewer's folder configuration.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-82985?
CVE-2026-82985 is a medium-severity vulnerability in Nextcloud Server, published on 18 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The Photos app's filter-based "smart albums" build their file listing using the search configuration (photosSourceFolders) of the user viewing the album, rather than the album owner's configuration. When an album owner shares a smart album with another user, that user's own folder configuration is used to determine which of the owner's files are searched — allowing them to discover files (name, file ID, and other metadata) in folders the album owner never intended to include in the shared album.
This requires the album owner to have shared a filter-based smart album with the attacker; it does not allow access to arbitrary users' files without such a share.
Weakness: CWE-284
Which versions are affected by CVE-2026-82985?
1 open source package ship an affected version, including nextcloud.
| Package | Affected | Fixed in |
|---|---|---|
nextcloud Bitnami | All versions | 32.0.0 |
How do I fix CVE-2026-82985?
Upgrade nextcloud to 32.0.0 or later.
Is CVE-2026-82985 being exploited?
There is no known exploitation of CVE-2026-82985 in the wild and no public exploit code.
Sources
Also known as BIT-nextcloud-2026-82985, GHSA-fp2m-3769-mjc9.