{"id":"GHSA-vvpg-55p7-5h8w","summary":"Mattermost did not properly restrict channel creation","details":"Mattermost versions 9.9.x \u003c= 9.9.0, 9.5.x \u003c= 9.5.6 fail to properly restrict channel creation which allows a malicious remote to create arbitrary channels, when shared channels were enabled.","aliases":["BIT-mattermost-2024-39837","CVE-2024-39837","GO-2024-3032"],"modified":"2025-07-25T15:45:57Z","published":"2024-08-01T15:32:23Z","database_specific":{"cwe_ids":["CWE-284"],"severity":"LOW","github_reviewed":true,"github_reviewed_at":"2024-08-02T13:29:46Z","nvd_published_at":"2024-08-01T15:15:12Z"},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-39837"},{"type":"PACKAGE","url":"https://github.com/mattermost/mattermost"},{"type":"WEB","url":"https://mattermost.com/security-updates"},{"type":"WEB","url":"https://pkg.go.dev/vuln/GO-2024-3032"}],"affected":[{"package":{"name":"github.com/mattermost/mattermost/server/v8","ecosystem":"Go","purl":"pkg:golang/github.com/mattermost/mattermost/server/v8"},"ranges":[{"type":"SEMVER","events":[{"introduced":"9.5.0"},{"fixed":"9.5.7"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/08/GHSA-vvpg-55p7-5h8w/GHSA-vvpg-55p7-5h8w.json"}},{"package":{"name":"github.com/mattermost/mattermost/server/v8","ecosystem":"Go","purl":"pkg:golang/github.com/mattermost/mattermost/server/v8"},"ranges":[{"type":"SEMVER","events":[{"introduced":"9.9.0"},{"fixed":"9.9.1"}]}],"versions":["9.9.0"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/08/GHSA-vvpg-55p7-5h8w/GHSA-vvpg-55p7-5h8w.json"}},{"package":{"name":"github.com/mattermost/mattermost/server/v8","ecosystem":"Go","purl":"pkg:golang/github.com/mattermost/mattermost/server/v8"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"8.0.0-20240626164322-c758cecaf30c"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/08/GHSA-vvpg-55p7-5h8w/GHSA-vvpg-55p7-5h8w.json"}},{"package":{"name":"github.com/mattermost/mattermost-server","ecosystem":"Go","purl":"pkg:golang/github.com/mattermost/mattermost-server"},"ranges":[{"type":"SEMVER","events":[{"introduced":"9.9.0"},{"fixed":"9.9.1"}]}],"versions":["9.9.0"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/08/GHSA-vvpg-55p7-5h8w/GHSA-vvpg-55p7-5h8w.json"}},{"package":{"name":"github.com/mattermost/mattermost-server/v5","ecosystem":"Go","purl":"pkg:golang/github.com/mattermost/mattermost-server/v5"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"5.3.2-0.20240626164322-c758cecaf30c"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/08/GHSA-vvpg-55p7-5h8w/GHSA-vvpg-55p7-5h8w.json"}},{"package":{"name":"github.com/mattermost/mattermost-server/v6","ecosystem":"Go","purl":"pkg:golang/github.com/mattermost/mattermost-server/v6"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"6.0.0-20240626164322-c758cecaf30c"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/08/GHSA-vvpg-55p7-5h8w/GHSA-vvpg-55p7-5h8w.json"}},{"package":{"name":"github.com/mattermost/mattermost-server","ecosystem":"Go","purl":"pkg:golang/github.com/mattermost/mattermost-server"},"ranges":[{"type":"SEMVER","events":[{"introduced":"9.5.0"},{"fixed":"9.5.7"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/08/GHSA-vvpg-55p7-5h8w/GHSA-vvpg-55p7-5h8w.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N"}]}