{"schema_version":"1.7.3","id":"GHSA-7cr3-38jm-6p45","published":"2025-10-16T09:30:24Z","modified":"2025-11-05T19:57:38.536178Z","aliases":["CVE-2025-41443","GO-2025-4031"],"summary":"Mattermost has a Missing Authorization vulnerability","details":"Mattermost versions 10.5.x <= 10.5.10, 10.11.x <= 10.11.2 fail to properly validate guest user permissions when accessing channel information which allows guest users to discover active public channels and their metadata via the `/api/v4/teams/{team_id}/channels/ids` endpoint","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":"0"},{"fixed":"8.0.0-20250822090405-e8c7e7d0252b"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/10/GHSA-7cr3-38jm-6p45/GHSA-7cr3-38jm-6p45.json"}},{"package":{"name":"github.com/mattermost/mattermost-server","ecosystem":"Go","purl":"pkg:golang/github.com/mattermost/mattermost-server"},"ranges":[{"type":"SEMVER","events":[{"introduced":"10.5.0"},{"fixed":"10.5.11"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/10/GHSA-7cr3-38jm-6p45/GHSA-7cr3-38jm-6p45.json"}},{"package":{"name":"github.com/mattermost/mattermost-server","ecosystem":"Go","purl":"pkg:golang/github.com/mattermost/mattermost-server"},"ranges":[{"type":"SEMVER","events":[{"introduced":"10.11.0"},{"fixed":"10.11.3"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/10/GHSA-7cr3-38jm-6p45/GHSA-7cr3-38jm-6p45.json"}}],"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-41443"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/pull/31327"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/pull/33778"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/commit/e8c7e7d0252bbf1e098aae4a5ea05d945afd7e70"},{"type":"PACKAGE","url":"https://github.com/mattermost/mattermost"},{"type":"WEB","url":"https://mattermost.com/security-updates"}],"database_specific":{"cwe_ids":["CWE-862"],"github_reviewed":true,"github_reviewed_at":"2025-10-16T20:54:54Z","nvd_published_at":"2025-10-16T08:15:35Z","severity":"MODERATE"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"}]}