{"action":"Upgrade github.com/mattermost/mattermost/server/v8 to 8.0.0-20260217110922-b7d4a1f1f59b or later.","affected":[{"fixed":"8.0.0-20260217110922-b7d4a1f1f59b","introduced":"8.0.0-20260105080200-d27a2195068d"}],"component":"github.com/mattermost/mattermost/server/v8","cve_ids":["CVE-2026-3112"],"ecosystem":"Go","epss":0.00437,"exploited":false,"fixed_versions":["8.0.0-20260217110922-b7d4a1f1f59b"],"ghsa_id":"GHSA-3mw5-466q-295q","id":"tcs_01M5KGHTRC6RJQ6BMDKRP2S57F","modified_at":"2026-06-25T18:45:17.957442304Z","published_at":"2026-06-25T18:26:48Z","references":["https://osv.dev/vulnerability/GO-2026-5092","https://github.com/advisories/GHSA-3mw5-466q-295q","https://nvd.nist.gov/vuln/detail/CVE-2026-3112","https://mattermost.com/security-updates"],"severity":{"label":"medium","score":4.9},"sources":[{"source":"osv","source_id":"GO-2026-5092#Go/github.com/mattermost/mattermost/server/v8","url":"https://osv.dev/vulnerability/GO-2026-5092"},{"source":"nvd","source_id":"CVE-2026-3112","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-3112"}],"summary":"Mattermost allows system administrators to read arbitrary host files via malicious AdvancedLoggingJSON configuration in github.com/mattermost/mattermost-server"}