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CVE-2021-28147

21
FAUCET Score

CVE-2021-28147 is an Incorrect Access Control vulnerability affecting Grafana Enterprise versions 6.x, 7.x, and 7.4.x. When using external authentication and the EditorsCanAdmin feature, any authenticated user can add external groups to existing teams, potentially granting unauthorized permissions. This medium-severity vulnerability (CVSS 6.5) has a low attack complexity and can lead to high integrity impacts by allowing privilege escalation. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 6.0.0, < 6.7.6CPE matchmatch criteria
cpe:2.3:a:grafana:grafana:*:*:*:*:enterprise:*:*:*
>= 7.0.0, < 7.3.10CPE matchmatch criteria
cpe:2.3:a:grafana:grafana:*:*:*:*:enterprise:*:*:*
>= 7.4.0, < 7.4.5CPE matchmatch criteria
cpe:2.3:a:grafana:grafana:*:*:*:*:enterprise:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.61%
Probability of exploitation in next 30 days
EPSS Percentile
73.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0161 is in the 87th percentile among its peer group of 21,974 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2021-28147Important

grafana: Allows to bypass access control restrictions via external groups

Mar 18, 2021

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 NotesVendor Advisory
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 NotesVendor Advisory
grafana.com / docs/grafana/latest/release-notes/release-notes-7-3-10
Release NotesVendor Advisory
grafana.com / docs/grafana/latest/release-notes/release-notes-7-4-5
Release NotesVendor Advisory
grafana.com / products/enterprise
ProductVendor Advisory
security.netapp.com / advisory/ntap-20210430-0005
Third Party Advisory
openwall.com / lists/oss-security/2021/03/19/5
Mailing ListThird Party Advisory