Nextcloud Talk not properly disassociating users from chats after account deletion

2021-07-12T09:17:43
ID GHSA-XV6F-344W-895C
Type nextcloud
Reporter Nextcloud
Modified 2021-07-12T09:17:43

Description

Description

Impact

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.

Patches

It is recommended that the Nextcloud Talk App is upgraded to 11.2.2 or 11.3.0

Workarounds

Don't allow users to choose usernames themselves. This is the default behaviour of Nextcloud, but some user providers may allow doing so. (e.g. the registration app)

References

For more information

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