CVE-2021-22895
Publication date 11 June 2021
Last updated 11 July 2025
Ubuntu priority
Cvss 3 Severity Score
Description
Nextcloud Desktop Client before 3.3.1 is vulnerable to improper certificate validation due to lack of SSL certificate verification when using the “Register with a Provider” flow.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| nextcloud-desktop | 25.10 questing |
Needs evaluation
|
| 25.04 plucky |
Needs evaluation
|
|
| 24.04 LTS noble |
Needs evaluation
|
|
| 22.04 LTS jammy |
Needs evaluation
|
|
| 20.04 LTS focal |
Needs evaluation
|
|
| 18.04 LTS bionic | Not in release | |
| 16.04 LTS xenial | Ignored end of standard support | |
| 14.04 LTS trusty | Not in release |
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score |
|
| Attack vector | Network |
| Attack complexity | High |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | High |
| Availability impact | None |
| Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N |
References
Other references
- https://github.com/nextcloud/desktop/pull/2926
- https://github.com/nextcloud/desktop/commit/b1ddd0e491b2af0ed040e658d8bcde2a7a61c9fc (stable-3.1)
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-qpgp-vf4p-wcw5
- https://github.com/nextcloud/desktop/releases/tag/v3.1.3
- https://hackerone.com/reports/903424
- https://www.cve.org/CVERecord?id=CVE-2021-22895