CVE-2024-52516: Nextcloud Server's shares are not removed when user is limited to share with in their groups and being removed from one of them

Medium severity · published Nov 15, 2024

CVE-2024-52516

Nextcloud Server's shares are not removed when user is limited to share with in their groups and being removed from one of them

4.3

CVSS

0.5%

EPSS

On KEV

Description

Nextcloud Server is a self hosted personal cloud system. When a server is configured to only allow sharing with users that are in ones own groups, after a user was removed from a group, previously shared items were not unshared. It is recommended that the Nextcloud Server is upgraded to 22.2.11 or 23.0.11 or 24.0.6 and Nextcloud Enterprise Server is upgraded to 22.2.11 or 23.0.11 or 24.0.6.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Attack vector

Network

Complexity

Low

Privileges

Low

User interaction

None

Confidentiality

Low

Integrity

None

Availability

None

Scope

Unchanged

Exploitation

Is it being used?

Exploit prediction (EPSS)0.5% · higher than 39% of CVEs

Exploited in the wildNo evidence yet

CISA KEVNot listed

Ransomware campaign useNot known

Affected products

Which versions

security-advisories · nextcloud

>= 28.0.0, < 28.0.9; >= 29.0.0, < 29.0.5 · source: vendor

Nextcloud Server · Nextcloud

26.0.0 before 26.0.13.9; 27.0.0 before 27.1.11.9; 28.0.0 before 28.0.9; 28.0.0 before 28.0.9; 29.0.0 before 29.0.5; 29.0.0 before 29.0.5 · source: NVD

Affected product

security-advisories

nextcloud

All security-advisories CVEs

References

NVD

https://nvd.nist.gov/vuln/detail/CVE-2024-52516

CVE.org

https://www.cve.org/CVERecord?id=CVE-2024-52516

Vendor Advisory

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-35gc-jc6x-29cm

Patch

https://github.com/nextcloud/server/commit/142b6e313ffa9d3b950bcd23cb58850d3ae7cf34

Issue Tracking

https://github.com/nextcloud/server/pull/47180