Vulnerability Monitor

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CVE-2025-66549

Nextcloud Desktop is the desktop sync client for Nextcloud. Prior to 3.16.5, when trying to manually lock a file inside an end-to-end encrypted directory, the path of the file was sent to the server unencrypted, making it possible for administrators to see it in log files. This vulnerability is fixed in 3.16.5.

Published

2025-12-05T18:15:58.133

Last Modified

2025-12-09T18:58:22.650

Status

Analyzed

Source

[email protected]

Severity

CVSSv3.1: 2.4 (LOW)

Weaknesses

Type: Secondary
CWE-209

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	nextcloud	desktop	< 3.16.5	Yes

References

https://github.com/nextcloud/desktop/commit/36d6c234d42b06a6f2e9de3e413a5c3c625edad6 Patch ([email protected])
https://github.com/nextcloud/desktop/pull/8330 Issue Tracking ([email protected])
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-h9xj-qh76-q3hw Patch, Vendor Advisory ([email protected])
https://hackerone.com/reports/3159877 Permissions Required, Vendor Advisory ([email protected])