First published: Mon Jul 12 2021(Updated: )
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.
Credit: security-advisories@github.com
Affected Software | Affected Version | How to fix |
---|---|---|
Nextcloud talk | <11.2.2 |
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The vulnerability ID of Nextcloud Talk is CVE-2021-32689.
The severity of CVE-2021-32689 is high.
CVE-2021-32689 allows an attacker to access chat messages sent to a previous user with a reused username in Nextcloud Talk versions prior to 11.2.2.
CVE-2021-32689 affects Nextcloud Talk versions prior to 11.2.2.
Yes, CVE-2021-32689 has been patched in Nextcloud Talk versions 11.2.2 and 11.