{"id":"CVE-2024-21630","summary":"Zulip non-admins can invite new users to streams they would not otherwise be able to add existing users to","details":"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.","modified":"2026-08-12T03:51:38.578599256Z","published":"2024-01-25T19:30:09.106Z","related":["GHSA-87p9-wprh-7rm6","GHSA-mrvp-96q6-jpvc"],"database_specific":{"cwe_ids":["CWE-862"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/21xxx/CVE-2024-21630.json","cna_assigner":"GitHub_M"},"references":[{"type":"WEB","url":"https://zulip.com/help/configure-who-can-invite-to-streams"},{"type":"WEB","url":"https://zulip.com/help/restrict-account-creation#change-who-can-send-invitations"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/21xxx/CVE-2024-21630.json"},{"type":"ADVISORY","url":"https://github.com/zulip/zulip/security/advisories/GHSA-87p9-wprh-7rm6"},{"type":"ADVISORY","url":"https://github.com/zulip/zulip/security/advisories/GHSA-mrvp-96q6-jpvc"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-21630"},{"type":"FIX","url":"https://github.com/zulip/zulip/commit/0df7bd71f32f3b772e2646c6ab0d60c9b610addf"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/zulip/zulip","events":[{"introduced":"06d39f87b78944ca841f64f0722b77d799e1b361"},{"fixed":"5082182e37a453ce66af41796db43458f6455875"},{"introduced":"0a7d3d3fe28bc1abc931e39fe2d7083798310a21"},{"fixed":"93d74607ce39a5d39783cd1d511675871598365b"},{"fixed":"0df7bd71f32f3b772e2646c6ab0d60c9b610addf"}],"database_specific":{"extracted_events":[{"introduced":"1.9.0"},{"fixed":"6.2"},{"introduced":"8.0"},{"fixed":"8.1"}],"source":["CPE_RANGE","REFERENCES"],"cpe":"cpe:2.3:a:zulip:zulip_server:*:*:*:*:*:*:*:*"}}],"versions":["= 8.0","8.0","8.0-beta2","8.0-beta1","8.0-dev","6.1","6.0","shared-0.0.16","shared-0.0.15","shared-0.0.14","shared-0.0.13","shared-0.0.12","shared-0.0.11","shared-0.0.10","6.0-dev","5.0","shared-0.0.9","shared-0.0.8","shared-0.0.7","shared-0.0.6","4.0","5.0-dev","shared-0.0.5","shared-0.0.4","shared-0.0.3","4.0-dev","3.0","3.0-rc2","3.0-rc1","3.0-dev","2.2-dev","2.1.0","2.1.0-rc1","shared-0.0.2","shared-0.0.1","2.0.0","2.1-dev","2.0.0-rc1","1.9.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-21630.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"}]}