CVE-2026-82985Network attack vectorHinoki check available

Shared-album metadata disclosure via viewer folder settings

Published Sep 18, 2026 · Updated Sep 18, 2026

Improper access control in Nextcloud Server before 32.0.0 allows remote authenticated users to view unshared file metadata through shared smart albums. The Photos app builds a filter-based smart album's file list using the viewer's photosSourceFolders setting instead of the album owner's setting. The album owner must first share that smart album with the user; the exposure concerns the owner's file names, IDs, and other metadata, not arbitrary users' files.

CVSS severity6.5
Medium
EPSS probability0.38%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Improper access control in Nextcloud Server before 32.0.0 allows remote authenticated users to view unshared file metadata through shared smart albums. The Photos app builds a filter-based smart album's file list using the viewer's photosSourceFolders setting instead of the album owner's setting. The album owner must first share that smart album with the user; the exposure concerns the owner's file names, IDs, and other metadata, not arbitrary users' files.

The record

CVE
CVE-2026-82985
Published
Sep 18, 2026
Updated
Sep 18, 2026
Vendor
Nextcloud GmbH
Product
Nextcloud Server
Classifications
CWE-284, T1213
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 18, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 18, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected version<32.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Nextcloud GmbH · Nextcloud Server<32.0.0

Published CVSS scores

6.5HackerOne CNACVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-284Improper Access Control
T1213Data from Information Repositories

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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