{"id":"GO-2025-4259","summary":"Mattermost doesn't validate user channel membership when attaching Mattermost posts as comments to Jira issues in github.com/mattermost/mattermost-server","details":"Mattermost doesn't validate user channel membership when attaching Mattermost posts as comments to Jira issues in github.com/mattermost/mattermost-server.\n\nNOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.\n\n(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)\n\nThe additional affected modules and versions are: github.com/mattermost/mattermost/server/v8 before v8.0.0-20251121122154-b57c297c6d7.","aliases":["CVE-2025-13767","GHSA-fmqf-pmcm-8cx9"],"modified":"2026-02-26T17:42:02.028435Z","published":"2026-02-26T16:27:46Z","database_specific":{"url":"https://pkg.go.dev/vuln/GO-2025-4259","review_status":"UNREVIEWED"},"references":[{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-fmqf-pmcm-8cx9"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-13767"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/commit/b57c297c6d7ae6812d85e32a625806ac9555deee"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/pull/34551"},{"type":"WEB","url":"https://mattermost.com/security-updates"}],"affected":[{"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":"10.11.8+incompatible"},{"introduced":"10.12.0+incompatible"},{"fixed":"10.12.4+incompatible"},{"introduced":"11.0.1+incompatible"},{"fixed":"11.0.6+incompatible"},{"introduced":"11.1.0+incompatible"},{"fixed":"11.1.1+incompatible"}]}],"ecosystem_specific":{"custom_ranges":[{"events":[{"introduced":"11.0.0"}],"type":"ECOSYSTEM"}]},"database_specific":{"source":"https://vuln.go.dev/ID/GO-2025-4259.json"}},{"package":{"name":"github.com/mattermost/mattermost-server/v5","ecosystem":"Go","purl":"pkg:golang/github.com/mattermost/mattermost-server/v5"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://vuln.go.dev/ID/GO-2025-4259.json"}},{"package":{"name":"github.com/mattermost/mattermost-server/v6","ecosystem":"Go","purl":"pkg:golang/github.com/mattermost/mattermost-server/v6"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://vuln.go.dev/ID/GO-2025-4259.json"}},{"package":{"name":"github.com/mattermost/mattermost/server/v8","ecosystem":"Go","purl":"pkg:golang/github.com/mattermost/mattermost/server/v8"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"}]}],"ecosystem_specific":{"custom_ranges":[{"events":[{"introduced":"0"},{"fixed":"8.0.0-20251121122154-b57c297c6d7"}],"type":"ECOSYSTEM"}]},"database_specific":{"source":"https://vuln.go.dev/ID/GO-2025-4259.json"}}],"schema_version":"1.7.3"}