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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
2.4 LOW
NETWORK
LOW
HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:N/A:N
GitHub_MCNA
2.4 LOW
NETWORK
LOW
HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:N/A:N
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Debian logo
Debian Releases
Debian Product
Codename
nextcloud-desktop
bullseye
vulnerable
bullseye (security)
vulnerable
bookworm
vulnerable
trixie
3.16.7-1~deb13u1
fixed
forky
4.0.1-2
fixed
sid
4.0.1-2
fixed
Common Weakness Enumeration
Vulnerability Media Exposure
References
https://github.com/nextcloud/desktop/commit/36d6c234d42b06a6f2e9de3e413a5c3c625edad6
https://github.com/nextcloud/desktop/pull/8330
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-h9xj-qh76-q3hw
https://hackerone.com/reports/3159877