{"action":"Upgrade github.com/mattermost/mattermost/server/v8 to 8.0.0-20250815165020-c8d66301415d or later.","affected":[{"fixed":"8.0.0-20250815165020-c8d66301415d","introduced":"0"}],"component":"github.com/mattermost/mattermost/server/v8","cve_ids":["CVE-2025-11776"],"ecosystem":"Go","epss":0.00208,"exploited":false,"fixed_versions":["8.0.0-20250815165020-c8d66301415d"],"ghsa_id":"GHSA-j6gg-r5jc-47cm","id":"tcs_01M5KGBNZ6WM7SCG49B7Q99W0C","modified_at":"2026-03-03T04:57:37.411534Z","published_at":"2025-11-17T19:11:25Z","references":["https://osv.dev/vulnerability/GO-2025-4126","https://github.com/advisories/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":"GO-2025-4126#Go/github.com/mattermost/mattermost/server/v8","url":"https://osv.dev/vulnerability/GO-2025-4126"},{"source":"nvd","source_id":"CVE-2025-11776","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-11776"}],"summary":"Mattermost fails to properly restrict access to archived channel search API in github.com/mattermost/mattermost"}