{"action":"Upgrade github.com/mattermost/mattermost-server to 9.11.14 or later.","affected":[{"fixed":"10.5.5","introduced":"10.5.0"},{"fixed":"9.11.14","introduced":"9.11.0"}],"component":"github.com/mattermost/mattermost-server","cve_ids":["CVE-2025-4128"],"ecosystem":"Go","epss":0.00222,"exploited":false,"fixed_versions":["10.5.5","9.11.14"],"ghsa_id":"GHSA-jwhw-xf5v-qgxc","id":"tcs_01M5KFEW3MKSPZ6P788NPP7P8T","modified_at":"2025-06-11T18:27:33.544415Z","published_at":"2025-06-11T12:30:36Z","references":["https://osv.dev/vulnerability/GHSA-jwhw-xf5v-qgxc","https://nvd.nist.gov/vuln/detail/CVE-2025-4128","https://github.com/mattermost/mattermost/commit/2138a5f2ca6f75e2b99f6a04ea569d0f680c4fab","https://github.com/mattermost/mattermost/commit/701ddc896a107b13f457fbdbe229bce5019fc516","https://github.com/mattermost/mattermost","https://mattermost.com/security-updates"],"severity":{"label":"low","score":3.1},"sources":[{"source":"osv","source_id":"GHSA-jwhw-xf5v-qgxc#Go/github.com/mattermost/mattermost-server","url":"https://osv.dev/vulnerability/GHSA-jwhw-xf5v-qgxc"}],"summary":"Mattermost allows guest users to view information about public teams they are not members of"}