{"id":"GO-2026-5670","summary":"Focalboard doesn't validate file ownership when serving uploaded files in github.com/mattermost/focalboard","details":"Focalboard doesn't validate file ownership when serving uploaded files in github.com/mattermost/focalboard","aliases":["CVE-2026-28736","GHSA-vph7-r229-qxpf"],"modified":"2026-06-25T23:01:38.778614136Z","published":"2026-06-25T22:34:38Z","database_specific":{"url":"https://pkg.go.dev/vuln/GO-2026-5670","review_status":"UNREVIEWED"},"references":[{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-vph7-r229-qxpf"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-28736"}],"affected":[{"package":{"name":"github.com/mattermost/focalboard","ecosystem":"Go","purl":"pkg:golang/github.com/mattermost/focalboard"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://vuln.go.dev/ID/GO-2026-5670.json"}}],"schema_version":"1.7.5"}