{"action":"Upgrade github.com/mattermost/mattermost/server/v8 to 8.0.0-20250728063359-38208b8f065f or later.","affected":[{"fixed":"8.0.0-20250728063359-38208b8f065f","introduced":"0"}],"component":"github.com/mattermost/mattermost/server/v8","cve_ids":["CVE-2025-54499"],"ecosystem":"Go","epss":0.00272,"exploited":false,"fixed_versions":["8.0.0-20250728063359-38208b8f065f"],"ghsa_id":"GHSA-xr3w-rmvj-f6m7","id":"tcs_01M5KGB4AKP5FSRDS28RRKK4EY","modified_at":"2026-03-03T04:57:00.585185Z","published_at":"2025-10-30T15:02:33Z","references":["https://osv.dev/vulnerability/GO-2025-4036","https://github.com/advisories/GHSA-xr3w-rmvj-f6m7","https://nvd.nist.gov/vuln/detail/CVE-2025-54499","https://github.com/mattermost/mattermost/commit/38208b8f065f0786eac0e968f9d754b91b62878c","https://github.com/mattermost/mattermost/commit/97a4c7839cf5610cfe17c52042878aebb7678372","https://mattermost.com/security-updates"],"severity":{"label":"low","score":3.7},"sources":[{"source":"osv","source_id":"GO-2025-4036#Go/github.com/mattermost/mattermost/server/v8","url":"https://osv.dev/vulnerability/GO-2025-4036"},{"source":"nvd","source_id":"CVE-2025-54499","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-54499"}],"summary":"Mattermost has an Observable Timing Discrepancy vulnerability in github.com/mattermost/mattermost-server"}