Information Exposure Affecting nextcloud/desktop package, versions [,3.16.5)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UNMANAGED-NEXTCLOUDDESKTOP-14220406
- published8 Dec 2025
- disclosed5 Dec 2025
- creditUnknown
Introduced: 5 Dec 2025
CVE-2025-66549 (opens in a new tab)How to fix?
Upgrade nextcloud/desktop to version 3.16.5 or higher.
Overview
Affected versions of this package are vulnerable to Information Exposure when locking a file in an encrypted directory. An administrator user can obtain sensitive file path information by triggering a file lock operation inside an end-to-end encrypted directory, causing the file path to be sent unencrypted to the server where it may be exposed in server logs.