CVE-2021-32653 LOW

CVE-2021-32653: Default settings leak federated cloud ID to lookup server of all users

Vendor Nextcloud
Product security-advisories
Weakness CWE-201
Published June 1, 2021
Last update August 3, 2024

CVSS base score

2.7/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality Low
Integrity None

CVSS vector

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

What the vulnerability does

01Description

Nextcloud Server is a Nextcloud package that handles data storage. Nextcloud Server versions prior to 19.0.11, 20.0.10, or 21.0.2 send user IDs to the lookup server even if the user has no fields set to published. The vulnerability is patched in versions 19.0.11, 20.0.10, and 21.0.2; no workarounds outside the updates are known to exist.

Key dates

02Disclosure timeline

June 1, 2021 CVE published
August 3, 2024 Record updated