CVE-2024-21630: Zulip is an open-source team collaboration tool. A vulnerability in version 8.0 is similar to CVE-2023-32677, but applies to multi-use invitations, not…

PriorityP424medium4.3CVSS 3.1

AVNACLPRLUINSUCNILAN

EPSS

0.37%

28.6th percentile

Zulip is an open-source team collaboration tool. A vulnerability in version 8.0 is similar to CVE-2023-32677, but applies to multi-use invitations, not single-use invitation links as in the prior CVE. Specifically, it applies when the installation has configured non-admins to be able to invite users and create multi-use invitations, and has also configured only admins to be able to invite users to streams. As in CVE-2023-32677, this does not let users invite new users to arbitrary streams, only to streams that the inviter can already see. Version 8.1 fixes this issue. As a workaround, administrators can limit sending of invitations down to users who also have the permission to add users to streams.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
zulip	zulip_server	>= 1.9.0 < 6.2	6.2
zulip	zulip_server	>= 8.0 < 8.1	8.1

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