{"id":"GO-2026-5833","summary":"Mattermost doesn't validate user-supplied input in API request handlers in github.com/mattermost/mattermost-plugin-github","details":"Mattermost doesn't validate user-supplied input in API request handlers in github.com/mattermost/mattermost-plugin-github","aliases":["CVE-2026-4646","GHSA-rmvv-8v8w-rf7x"],"modified":"2026-07-07T16:01:34.767462688Z","published":"2026-07-07T15:26:32Z","database_specific":{"url":"https://pkg.go.dev/vuln/GO-2026-5833","review_status":"UNREVIEWED"},"references":[{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-rmvv-8v8w-rf7x"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-4646"},{"type":"FIX","url":"https://github.com/mattermost/mattermost-plugin-github/commit/c2840e980b3c2bd08db656eaa6a0fe26bcbf4695"},{"type":"WEB","url":"https://mattermost.com/security-updates"}],"affected":[{"package":{"name":"github.com/mattermost/mattermost-plugin-github","ecosystem":"Go","purl":"pkg:golang/github.com/mattermost/mattermost-plugin-github"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.0.1-0.20260330164815-c2840e980b3c"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://vuln.go.dev/ID/GO-2026-5833.json"}},{"package":{"name":"github.com/mattermost/mattermost-server","ecosystem":"Go","purl":"pkg:golang/github.com/mattermost/mattermost-server"},"ranges":[{"type":"SEMVER","events":[{"introduced":"10.11.0+incompatible"},{"fixed":"10.11.15+incompatible"},{"introduced":"11.4.0+incompatible"},{"fixed":"11.4.5+incompatible"},{"introduced":"11.5.0+incompatible"},{"fixed":"11.5.4+incompatible"},{"introduced":"11.6.0+incompatible"},{"fixed":"11.6.1+incompatible"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://vuln.go.dev/ID/GO-2026-5833.json"}}],"schema_version":"1.7.5"}