Description
The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server. Starting with version 3.0.0 and prior to version 3.7.0, by trusting that the server will return a certificate that belongs to the keypair of the user, a malicious server could get the desktop client to encrypt files with a key known to the attacker. This issue is fixed in Nextcloud Desktop 3.7.0. No known workarounds are available.
References (3)
Core 3
Core References
Vendor Advisory x_refsource_confirm
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-h82x-98q3-7534
Patch x_refsource_misc
https://github.com/nextcloud/desktop/pull/4949
Permissions Required x_refsource_misc
https://hackerone.com/reports/1679267
Scores
CVSS v3
5.4
EPSS
0.0008
EPSS Percentile
24.0%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-295
Status
published
Products (1)
nextcloud/desktop
3.0.0 - 3.7.0
Published
Apr 04, 2023
Tracked Since
Feb 18, 2026