{"action":"Upgrade github.com/mattermost/mattermost/server/v8 to 8.0.0-20260127144908-ced9a56e3988 or later.","affected":[{"fixed":"8.0.0-20260127144908-ced9a56e3988","introduced":"0"}],"component":"github.com/mattermost/mattermost/server/v8","cve_ids":["CVE-2026-22545"],"ecosystem":"Go","epss":0.00151,"exploited":false,"fixed_versions":["8.0.0-20260127144908-ced9a56e3988"],"ghsa_id":"GHSA-rv67-7w2g-7976","id":"tcs_01M5KGG2P4SNTVGVJMQHB4VEPK","modified_at":"2026-03-23T18:45:21.496438Z","published_at":"2026-03-23T18:16:14Z","references":["https://osv.dev/vulnerability/GO-2026-4786","https://github.com/advisories/GHSA-rv67-7w2g-7976","https://nvd.nist.gov/vuln/detail/CVE-2026-22545","https://github.com/mattermost/mattermost/commit/ced9a56e3988fe9fd4559d45f9971dbd562e2218","https://mattermost.com/security-updates"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"GO-2026-4786#Go/github.com/mattermost/mattermost/server/v8","url":"https://osv.dev/vulnerability/GO-2026-4786"}],"summary":"Mattermost fails to validate user's authentication method when processing account auth type switch in github.com/mattermost/mattermost-server"}