CVE-2021-37630: Secret Circle can be joined without approval in Nextcloud Circles

First published: Tue Sep 07 2021(Updated: )

Nextcloud Circles is an open source social network built for the nextcloud ecosystem. In affected versions the Nextcloud Circles application allowed any user to join any "Secret Circle" without approval by the Circle owner leaking private information. It is recommended that Nextcloud Circles is upgraded to 0.19.15, 0.20.11 or 0.21.4. There are no workarounds for this issue.

Credit: security-advisories@github.com

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