CVE-2021-41241 Details
Description
Nextcloud server is a self hosted system designed to provide cloud style services. The groupfolders application for Nextcloud allows sharing a folder with a group of people. In addition, it allows setting "advanced permissions" on subfolders, for example, a user could be granted access to the groupfolder but not specific subfolders. Due to a lacking permission check in affected versions, a user could still access these subfolders by copying the groupfolder to another location. It is recommended that the Nextcloud Server is upgraded to 20.0.14, 21.0.6 or 22.2.1. Users unable to upgrade should disable the "groupfolders" application in the admin settings.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Apr 23, 2025References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/nextcloud/groupfolders/issues/1692 | CVE | Issue TrackingPatchThird Party Advisory |
| https://github.com/nextcloud/security-advisories/security/advisories/GHSA-m4wp-r357-4q94 | CVE | Issue TrackingThird Party Advisory |
| https://github.com/nextcloud/server/pull/29362 | CVE | PatchThird Party Advisory |
| https://security.gentoo.org/glsa/202208-17 | CVE | Third Party Advisory |
| https://github.com/nextcloud/groupfolders/issues/1692 | [email protected] | Issue TrackingPatchThird Party Advisory |
| https://github.com/nextcloud/security-advisories/security/advisories/GHSA-m4wp-r357-4q94 | [email protected] | Issue TrackingThird Party Advisory |
| https://github.com/nextcloud/server/pull/29362 | [email protected] | PatchThird Party Advisory |
| https://security.gentoo.org/glsa/202208-17 | [email protected] | Third Party Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-862 | Missing Authorization | [email protected] |
| CWE-863 | Incorrect Authorization | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| nextcloud nextcloud server | < 20.0.14 >= 21.0.0, < 21.0.6 22.2.0 |
CPE
Remediation
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Change History
8 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Nov 21, 2024 | CVE Modified | CVE |
| May 14, 2024 | CVE Modified | [email protected] |
| Oct 25, 2022 | Modified Analysis | [email protected] |
| Aug 11, 2022 | CVE Modified | [email protected] |
| Aug 9, 2022 | Reanalysis | [email protected] |
| Mar 14, 2022 | Initial Analysis | [email protected] |