CVE-2021-28148

HIGH 7.5CVE-2021-28148 · Published 22/03/2021 · updated 17/06/2026

In short

CVE-2021-28148 is a HIGH (CVSS 7.5) vulnerability affecting grafana (grafana).
Chance of exploitation in the next 30 days (EPSS): 3.5%, higher than 89.2% of all vulnerabilities.
Fix: update to 6.7.6, 7.3.10, 7.4.5 or later.

Package	Affected versions	Patched versions
grafana grafana	`≥ 6.0.0, < 6.7.6≥ 7.0.0, < 7.3.10≥ 7.4.0, < 7.4.5`	`6.7.67.3.107.4.5`

Description

One of the usage insights HTTP API endpoints in Grafana Enterprise 6.x before 6.7.6, 7.x before 7.3.10, and 7.4.x before 7.4.5 is accessible without any authentication. This allows any unauthenticated user to send an unlimited number of requests to the endpoint, leading to a denial of service (DoS) attack against a Grafana Enterprise instance.

References

community.grafana.com/t/grafana-enterprise-6-7-6-7-3-10-and-7-4-5-security-update/44724 · Vendor Advisory
community.grafana.com/t/release-notes-v6-7-x/27119 · Release Notes
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 · Release Notes
grafana.com/docs/grafana/latest/release-notes/release-notes-7-3-10 · Release Notes
grafana.com/docs/grafana/latest/release-notes/release-notes-7-4-5 · Release Notes
grafana.com/products/enterprise · Product
security.netapp.com/advisory/ntap-20210430-0005 · Third Party Advisory
openwall.com/lists/oss-security/2021/03/19/5 · Mailing List

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Package

Affected versions

Patched versions

grafana

≥ 6.0.0, < 6.7.6≥ 7.0.0, < 7.3.10≥ 7.4.0, < 7.4.5

6.7.67.3.107.4.5

Description

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