{"id":"CVE-2021-28147","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-28147","generatedAt":"2026-10-28T05:26:29.367Z","title":"On Grafana instances using an external authentication service and having the EditorsCanAdmin feature enabled, this vulnerability allows any authenticated user to add external groups to any existing team.","description":"The team sync HTTP API in Grafana Enterprise 6.x before 6.7.6, 7.x before 7.3.10, and 7.4.x before 7.4.5 has an Incorrect Access Control issue. On Grafana instances using an external authentication service and having the EditorsCanAdmin feature enabled, this vulnerability allows any authenticated user to add external groups to any existing team. This can be used to grant a user team permissions that the user isn't supposed to have.","published":"2021-03-22T15:15:15.000Z","lastModified":"2026-06-17T03:45:53.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":6.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N"},"cwe":[],"affected":["grafana/grafana"],"epss":{"score":0.0161,"percentile":0.75799,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (1.61%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://community.grafana.com/t/grafana-enterprise-6-7-6-7-3-10-and-7-4-5-security-update/44724","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://community.grafana.com/t/release-notes-v6-7-x/27119","tags":["Release Notes","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://grafana.com/blog/2021/03/18/grafana-6.7.6-7.3.10-and-7.4.5-released-with-important-security-fixes-for-grafana-enterprise/","tags":["Release Notes","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://grafana.com/docs/grafana/latest/release-notes/release-notes-7-3-10/","tags":["Release Notes","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://grafana.com/docs/grafana/latest/release-notes/release-notes-7-4-5/","tags":["Release Notes","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://grafana.com/products/enterprise/","tags":["Product","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://security.netapp.com/advisory/ntap-20210430-0005/","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://www.openwall.com/lists/oss-security/2021/03/19/5","tags":["Mailing List","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://community.grafana.com/t/grafana-enterprise-6-7-6-7-3-10-and-7-4-5-security-update/44724","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://community.grafana.com/t/release-notes-v6-7-x/27119","tags":["Release Notes","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://grafana.com/blog/2021/03/18/grafana-6.7.6-7.3.10-and-7.4.5-released-with-important-security-fixes-for-grafana-enterprise/","tags":["Release Notes","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://grafana.com/docs/grafana/latest/release-notes/release-notes-7-3-10/","tags":["Release Notes","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://grafana.com/docs/grafana/latest/release-notes/release-notes-7-4-5/","tags":["Release Notes","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://grafana.com/products/enterprise/","tags":["Product","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.netapp.com/advisory/ntap-20210430-0005/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.openwall.com/lists/oss-security/2021/03/19/5","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-28147","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}