{"action":"Upgrade github.com/mattermost/mattermost-server/v6 to 5.3.2-0.20250815165020-c8d66301415d or later.","affected":[{"fixed":"5.3.2-0.20250815165020-c8d66301415d","introduced":"0"}],"component":"github.com/mattermost/mattermost-server/v6","cve_ids":["CVE-2025-11776"],"ecosystem":"Go","epss":0.00208,"exploited":false,"fixed_versions":["5.3.2-0.20250815165020-c8d66301415d"],"ghsa_id":"GHSA-j6gg-r5jc-47cm","id":"tcs_01M5KFDMTEYCM59WRRBPR6GFJ8","modified_at":"2025-11-17T19:58:46.484873Z","published_at":"2025-11-14T09:30:27Z","references":["https://osv.dev/vulnerability/GHSA-j6gg-r5jc-47cm","https://nvd.nist.gov/vuln/detail/CVE-2025-11776","https://github.com/mattermost/mattermost/commit/c8d66301415d5b447df0e829bdbaa92e8a83ecf8","https://mattermost.com/security-updates"],"severity":{"label":"medium","score":4.3},"sources":[{"source":"osv","source_id":"GHSA-j6gg-r5jc-47cm#Go/github.com/mattermost/mattermost-server/v6","url":"https://osv.dev/vulnerability/GHSA-j6gg-r5jc-47cm"}],"summary":"Mattermost fails to properly restrict access to archived channel search API"}