CVE-2021-32656
- Source
- https://cve.org/CVERecord?id=CVE-2021-32656
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-32656.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2021-32656
- Related
- Published
- 2021-06-01T22:15:08.173Z
- Modified
- 2026-03-15T22:25:23.625125Z
- Severity
-
- 8.6 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N CVSS Calculator
- Summary
- [none]
- Details
-
Nextcloud Server is a Nextcloud package that handles data storage. A vulnerability in federated share exists in versions prior to 19.0.11, 20.0.10, and 21.0.2. An attacker can gain access to basic information about users of a server by accessing a public link that a legitimate server user added as a federated share. This happens because Nextcloud supports sharing registered users with other Nextcloud servers, which can be done automatically when selecting the "Add server automatically once a federated share was created successfully" setting. The vulnerability is patched in versions 19.0.11, 20.0.10, and 21.0.2 As a workaround, disable "Add server automatically once a federated share was created successfully" in the Nextcloud settings.
- References
Affected packages
Git / github.com/nextcloud/server
Affected ranges
- Type
- GIT
- Repo
- https://github.com/nextcloud/server
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixedIntroducedFixedIntroducedFixed
- Database specific
{ "versions": [ { "introduced": "0" }, { "fixed": "19.0.11" }, { "introduced": "20.0.0" }, { "fixed": "20.0.10" }, { "introduced": "21.0.0" }, { "fixed": "21.0.2" } ] }