{"action":"Upgrade github.com/mattermost/mattermost-server to 9.11.18+incompatible or later.","affected":[{"fixed":"9.11.18+incompatible","introduced":"9.11.0+incompatible"},{"fixed":"10.5.9+incompatible","introduced":"10.5.0+incompatible"},{"fixed":"10.8.4+incompatible","introduced":"10.8.0+incompatible"},{"fixed":"10.9.3+incompatible","introduced":"10.9.0+incompatible"}],"component":"github.com/mattermost/mattermost-server","cve_ids":["CVE-2025-8023"],"ecosystem":"Go","epss":0.00407,"exploited":false,"fixed_versions":["9.11.18+incompatible","10.5.9+incompatible","10.8.4+incompatible","10.9.3+incompatible"],"ghsa_id":"GHSA-x67c-v8jr-p29r","id":"tcs_01M5KGA1NJ7ZDFE45BW64BPYSN","modified_at":"2026-03-03T04:56:52.107772Z","published_at":"2025-08-29T14:52:20Z","references":["https://osv.dev/vulnerability/GO-2025-3907","https://github.com/advisories/GHSA-x67c-v8jr-p29r","https://nvd.nist.gov/vuln/detail/CVE-2025-8023","https://mattermost.com/security-updates"],"severity":{"label":"medium","score":4.9},"sources":[{"source":"osv","source_id":"GO-2025-3907","url":"https://osv.dev/vulnerability/GO-2025-3907"},{"source":"nvd","source_id":"CVE-2025-8023","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-8023"}],"summary":"Mattermost Fails to Sanitize Path Traversal Sequences in github.com/mattermost/mattermost-server"}