{"action":"No fix published. Pin and monitor.","affected":[{"introduced":"0"}],"component":"github.com/mattermost/mattermost-server/v5","cve_ids":["CVE-2026-2578"],"ecosystem":"Go","epss":0.00228,"exploited":false,"fixed_versions":[],"ghsa_id":"GHSA-3rhr-jr63-hwq5","id":"tcs_01M5KGFPD19W3VTG9E4W1SB883","modified_at":"2026-03-23T18:45:15.226624Z","published_at":"2026-03-23T18:14:47Z","references":["https://osv.dev/vulnerability/GO-2026-4734","https://github.com/advisories/GHSA-3rhr-jr63-hwq5","https://nvd.nist.gov/vuln/detail/CVE-2026-2578","https://github.com/mattermost/mattermost/commit/c6b205f0d77080ef805783de0628b9526af7faec","https://mattermost.com/security-updates"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"GO-2026-4734#Go/github.com/mattermost/mattermost-server/v5","url":"https://osv.dev/vulnerability/GO-2026-4734"}],"summary":"Mattermost fails to preserve the redacted state of burn-on-read posts during deletion in github.com/mattermost/mattermost-server"}