CVE-2021-27962 Missing authorization in n/a

What is CVE-2021-27962?

CVE-2021-27962 is a high-severity missing authorization vulnerability in Grafana Grafana, published on 22 Mar 2021. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Grafana Enterprise 7.2.x and 7.3.x before 7.3.10 and 7.4.x before 7.4.5 allows a dashboard editor to bypass a permission check concerning a data source they should not be able to access.

Which versions are affected by CVE-2021-27962?

1 open source package ship an affected version, including grafana. It affects 1 product.

Products include Grafana Grafana.

How do I fix CVE-2021-27962?

Upgrade grafana to a fixed version for your release line: 7.3.10 or 7.4.5.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2021-27962 being exploited?

There is no known exploitation of CVE-2021-27962 in the wild and no public exploit code.

Other vulnerabilities in Grafana Grafana

• CVE-2021-43798 Grafana Path Traversal Exploited High 7.5
• CVE-2025-41115 Incorrect privilege assignment Critical 10.0
• CVE-2022-39328 Grafana vulnerable to race condition allowing privilege escalation Critical 9.8
• CVE-2022-28660 Auth bypass in n/a Critical 9.8
• CVE-2022-26148 Information disclosure in n/a Critical 9.8

All Grafana Grafana vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BIT-grafana-2021-27962, GHSA-6858-383c-7xhr.