{"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-2026-3108"],"ecosystem":"Go","epss":0.00283,"exploited":false,"fixed_versions":["8.0.0-20260217110922-b7d4a1f1f59b"],"ghsa_id":"GHSA-3439-vqgj-2gcf","id":"tcs_01M5KGHM2CMDBCF50H4S9TPCGR","modified_at":"2026-06-25T18:45:16.203887202Z","published_at":"2026-06-25T18:26:48Z","references":["https://osv.dev/vulnerability/GO-2026-5067","https://github.com/advisories/GHSA-3439-vqgj-2gcf","https://nvd.nist.gov/vuln/detail/CVE-2026-3108","https://mattermost.com/security-updates"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"GO-2026-5067#Go/github.com/mattermost/mattermost/server/v8","url":"https://osv.dev/vulnerability/GO-2026-5067"}],"summary":"Mattermost allows attackers to manipulate administrator terminals via crafted messages containing ANSI and OSC escape sequences in github.com/mattermost/mattermost-server"}