{"action":"Upgrade github.com/mattermost/mattermost-server to 9.11.10+incompatible or later.","affected":[{"fixed":"9.11.10+incompatible","introduced":"9.11.0+incompatible"},{"fixed":"10.4.4+incompatible","introduced":"10.4.0+incompatible"},{"fixed":"10.5.2+incompatible","introduced":"10.5.0+incompatible"}],"component":"github.com/mattermost/mattermost-server","cve_ids":["CVE-2025-27571"],"ecosystem":"Go","epss":0.00273,"exploited":false,"fixed_versions":["9.11.10+incompatible","10.4.4+incompatible","10.5.2+incompatible"],"ghsa_id":"GHSA-h4rr-f37j-4hh7","id":"tcs_01M5KG82H9WG8H27F9F520XAC7","modified_at":"2026-02-04T04:09:52.095742Z","published_at":"2025-04-22T16:56:33Z","references":["https://osv.dev/vulnerability/GO-2025-3619","https://github.com/advisories/GHSA-h4rr-f37j-4hh7","https://nvd.nist.gov/vuln/detail/CVE-2025-27571","https://mattermost.com/security-updates"],"severity":{"label":"medium","score":4.3},"sources":[{"source":"osv","source_id":"GO-2025-3619","url":"https://osv.dev/vulnerability/GO-2025-3619"},{"source":"nvd","source_id":"CVE-2025-27571","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-27571"}],"summary":"Mattermost Incorrect Authorization vulnerability in github.com/mattermost/mattermost-server"}