{"schema_version":"1.7.3","id":"GHSA-63wg-qmrv-7q66","published":"2022-05-24T17:21:05Z","modified":"2026-02-03T03:02:22.445138Z","aliases":["CVE-2017-18896","GO-2026-4299"],"summary":"Mattermost Server allows attackers to log sensitive information via DEBUG REST API logging endpoint","details":"An issue was discovered in Mattermost Server before 4.2.0, 4.1.1, and 4.0.5. It allows attackers to add DEBUG lines to the logs via a REST API version 3 logging endpoint.","affected":[{"package":{"name":"github.com/mattermost/mattermost-server","ecosystem":"Go","purl":"pkg:golang/github.com/mattermost/mattermost-server"},"ranges":[{"type":"SEMVER","events":[{"introduced":"4.1.0"},{"fixed":"4.1.1"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-63wg-qmrv-7q66/GHSA-63wg-qmrv-7q66.json"}},{"package":{"name":"github.com/mattermost/mattermost-server","ecosystem":"Go","purl":"pkg:golang/github.com/mattermost/mattermost-server"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"4.0.5"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-63wg-qmrv-7q66/GHSA-63wg-qmrv-7q66.json"}},{"package":{"name":"github.com/mattermost/mattermost-server","ecosystem":"Go","purl":"pkg:golang/github.com/mattermost/mattermost-server"},"ranges":[{"type":"SEMVER","events":[{"introduced":"4.2.0-rc1"},{"fixed":"4.2.0"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-63wg-qmrv-7q66/GHSA-63wg-qmrv-7q66.json"}}],"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2017-18896"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/commit/3c34e2b2dcb0fde96a10e68d877aa7d0ab511669"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/commit/722fb1947a2e7395ccf16adce9206736d803a9f3"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/commit/d38328976e2c8bb0fab91e656042a0d8ac37bc76"},{"type":"WEB","url":"https://github.com/mattermost/mattermost"},{"type":"WEB","url":"https://mattermost.com/security-updates"}],"database_specific":{"cwe_ids":["CWE-732"],"github_reviewed":true,"github_reviewed_at":"2026-01-12T19:28:48Z","nvd_published_at":"2020-06-19T19:15:00Z","severity":"MODERATE"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"}]}