CVE-2021-37630

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CVSS 3.1

6.5 medium

EPSS

1%p66

Published

Sep 7, 2021 (Sep 7, 2021)

Modified

Jun 17, 2026

Description

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.

Vendors: nextcloud
Products: circles
Weakness: CWE-639
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

NVD CVE.org GitHub PoCs EPSS (1.2%)

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