{"action":"Upgrade github.com/mattermost/mattermost/server/v8 to 8.0.0-20241127161322-25ff7a3779a5 or later.","affected":[{"fixed":"10.2.1","introduced":"10.2.0"},{"fixed":"10.1.4","introduced":"10.1.0"},{"fixed":"10.0.4","introduced":"10.0.0"},{"fixed":"9.11.6","introduced":"9.11.0"},{"fixed":"8.0.0-20241127161322-25ff7a3779a5","introduced":"0"}],"component":"github.com/mattermost/mattermost/server/v8","cve_ids":["CVE-2025-20086"],"ecosystem":"Go","epss":0.00446,"exploited":false,"fixed_versions":["10.2.1","10.1.4","10.0.4","9.11.6","8.0.0-20241127161322-25ff7a3779a5"],"ghsa_id":"GHSA-5m7j-6gc4-ff5g","id":"tcs_01M5KEYGYA92E1D8GYQDWRDREQ","modified_at":"2026-09-10T03:50:21.861419050Z","published_at":"2025-01-15T18:30:58Z","references":["https://osv.dev/vulnerability/GHSA-5m7j-6gc4-ff5g","https://nvd.nist.gov/vuln/detail/CVE-2025-20086","https://github.com/mattermost/mattermost","https://mattermost.com/security-updates","https://pkg.go.dev/vuln/GO-2025-3392"],"severity":{"label":"medium","score":6.5},"sources":[{"source":"osv","source_id":"GHSA-5m7j-6gc4-ff5g","url":"https://osv.dev/vulnerability/GHSA-5m7j-6gc4-ff5g"}],"summary":"Mattermost fails to properly validate post props"}