{"action":"No fix published. Pin and monitor.","affected":[{"introduced":"0"}],"component":"github.com/mattermost/mattermost-server/v6","cve_ids":["CVE-2026-20719"],"ecosystem":"Go","epss":0.00358,"exploited":false,"fixed_versions":[],"ghsa_id":"GHSA-86vc-mg26-fj6x","id":"tcs_01M5KGJXRG14385YXJSXKVKKF7","modified_at":"2026-06-25T19:45:21.545233502Z","published_at":"2026-06-25T18:43:15Z","references":["https://osv.dev/vulnerability/GO-2026-5245","https://github.com/advisories/GHSA-86vc-mg26-fj6x","https://nvd.nist.gov/vuln/detail/CVE-2026-20719","https://mattermost.com/security-updates"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"GO-2026-5245#Go/github.com/mattermost/mattermost-server/v6","url":"https://osv.dev/vulnerability/GO-2026-5245"}],"summary":"Mattermost: Authenticated DoS through failure to prevent rendering of external SVGs on link embeds in github.com/mattermost/mattermost-server"}