What’s Vulnerable › Vulnerabilities
CVE-2021-28147
- Severity: medium (CVSS 6.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 1.6% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2021-03-22 · updated 2026-06-17
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.
Affected products
- Grafana: from 6.0.0 before 6.7.6; from 7.0.0 before 7.3.10; from 7.4.0 before 7.4.5 — fixed in 6.7.6, 7.3.10, 7.4.5
How to fix
Upgrade to a fixed version: Grafana 6.7.6, 7.3.10, 7.4.5. Check the vendor advisory for mitigations.
References
- https://community.grafana.com/t/grafana-enterprise-6-7-6-7-3-10-and-7-4-5-security-update/44724
- https://community.grafana.com/t/release-notes-v6-7-x/27119
- 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/
- https://grafana.com/docs/grafana/latest/release-notes/release-notes-7-3-10/
- https://grafana.com/docs/grafana/latest/release-notes/release-notes-7-4-5/
- https://grafana.com/products/enterprise/
- https://security.netapp.com/advisory/ntap-20210430-0005/
- https://www.openwall.com/lists/oss-security/2021/03/19/5
- https://community.grafana.com/t/grafana-enterprise-6-7-6-7-3-10-and-7-4-5-security-update/44724
- https://community.grafana.com/t/release-notes-v6-7-x/27119
- 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/
- https://grafana.com/docs/grafana/latest/release-notes/release-notes-7-3-10/
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