{"action":"No fix published. Pin and monitor.","affected":[{"introduced":"0"}],"component":"github.com/mattermost/mattermost-server/v5","cve_ids":["CVE-2025-4128"],"ecosystem":"Go","epss":0.00222,"exploited":false,"fixed_versions":[],"ghsa_id":"GHSA-jwhw-xf5v-qgxc","id":"tcs_01M5KG8ZCA5MMVNVA3W05FX0JV","modified_at":"2026-03-03T04:56:41.328083Z","published_at":"2025-06-11T17:45:49Z","references":["https://osv.dev/vulnerability/GO-2025-3757","https://github.com/advisories/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://mattermost.com/security-updates"],"severity":{"label":"medium","score":4.3},"sources":[{"source":"osv","source_id":"GO-2025-3757#Go/github.com/mattermost/mattermost-server/v5","url":"https://osv.dev/vulnerability/GO-2025-3757"},{"source":"nvd","source_id":"CVE-2025-4128","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-4128"}],"summary":"Mattermost allows guest users to view information about public teams they are not members of in github.com/mattermost/mattermost-server"}