CVE-2021-32689

MEDIUM Year: 2021
CVSS v3 Score
6.5
Medium
CVSS v2 Score
4.0
Medium
Weakness Type
CWE-200
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Vulnerability Description

Nextcloud Talk is a fully on-premises audio/video and chat communication service. In versions prior to 11.2.2, if a user was able to reuse an earlier used username, they could get access to any chat message sent to the previous user with this username. The issue was patched in versions 11.2.2 and 11.3.0. As a workaround, don't allow users to choose usernames themselves. This is the default behaviour of Nextcloud, but some user providers may allow doing so.

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