{"action":"Upgrade github.com/mattermost/mattermost-plugin-github to 1.0.1-0.20260330164815-c2840e980b3c or later.","affected":[{"fixed":"1.0.1-0.20260330164815-c2840e980b3c","introduced":"0"}],"component":"github.com/mattermost/mattermost-plugin-github","cve_ids":["CVE-2026-4646"],"ecosystem":"Go","epss":0.0025,"exploited":false,"fixed_versions":["1.0.1-0.20260330164815-c2840e980b3c"],"ghsa_id":"GHSA-rmvv-8v8w-rf7x","id":"tcs_01M5KGQ4V6NXDQR6S69RY91Y0E","modified_at":"2026-07-07T16:01:34.767462688Z","published_at":"2026-07-07T15:26:32Z","references":["https://osv.dev/vulnerability/GO-2026-5833","https://github.com/advisories/GHSA-rmvv-8v8w-rf7x","https://nvd.nist.gov/vuln/detail/CVE-2026-4646","https://github.com/mattermost/mattermost-plugin-github/commit/c2840e980b3c2bd08db656eaa6a0fe26bcbf4695","https://mattermost.com/security-updates"],"severity":{"label":"medium","score":4.3},"sources":[{"source":"osv","source_id":"GO-2026-5833","url":"https://osv.dev/vulnerability/GO-2026-5833"},{"source":"nvd","source_id":"CVE-2026-4646","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-4646"}],"summary":"Mattermost doesn't validate user-supplied input in API request handlers in github.com/mattermost/mattermost-plugin-github"}