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Fencer Intel
medium 6.5

CVE-2021-28147 json

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 is…

published 5y ago modified 2mo ago also BIT-grafana-2021-28147 , EUVD-2021-14845

cvss
6.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.6%
EPSS 1.6% chance of exploitation in 30 days, percentile 76%
public exploits
0
none known

Summary

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.

Patch / fix

  • bitnami grafana 6.7.6, 7.3.10, 7.4.5
  • grafana grafana 6.7.6, 7.3.10, 7.4.5
  • rhnlib Manager Client Tools 15 4.2.4-3.28.1
  • ansible Manager Client Tools 15 2.9.21-1.5.1
  • mgr-cfg Manager Client Tools 15 4.2.3-1.18.1
  • mgr-osad Manager Client Tools 15 4.2.6-1.30.1
  • mgr-push Manager Client Tools 15 4.2.3-1.12.1
  • spacecmd Manager Client Tools 15 4.2.11-3.62.1
  • spacewalk-koan Manager Client Tools 15 4.2.4-3.21.1
  • dracut-saltboot Manager Client Tools 15 0.1.1627546504.96a0b3e-1.27.1

suse advisories SUSE-SU-2021:2675-1SUSE-SU-2021:2673-1SUSE-SU-2021:2660-1

  • ansible openSUSE Leap 15.2 2.9.21-lp152.2.7.1
  • dracut-saltboot openSUSE Leap 15.2 0.1.1627546504.96a0b3e-lp152.2.26.1
  • golang-github-prometheus-prometheus openSUSE Leap 15.2 2.27.1-lp152.3.13.1
  • grafana openSUSE Leap 15.2 7.5.7-lp152.2.16.1
  • rhnlib openSUSE Leap 15.3 4.2.4-3.28.1
  • ansible openSUSE Leap 15.3 2.9.21-1.5.1
  • mgr-cfg openSUSE Leap 15.3 4.2.3-1.18.1
  • mgr-osad openSUSE Leap 15.3 4.2.6-1.30.1

opensuse advisories openSUSE-SU-2021:1162-1openSUSE-SU-2021:1148-1openSUSE-SU-2021:2675-1openSUSE-SU-2021:2662-1

  • grafana Alpine 3.24, Alpine 3.23, Alpine 3.22 +8 more 7.4.5-r0

alpine advisories ALPINE-CVE-2021-28147

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Is CVE-2021-28147 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2021-28147 updated cvss 6.8

grafana: Allows to bypass access control restrictions via external groups

  • Red Hat OpenShift Service Mesh 1 servicemesh-grafana, servicemesh-grafana-prometheus Red Hat OpenShift Service Mesh 2.0 servicemesh-grafana, servicemesh-grafana-prometheus Red Hat Advanced Cluster Management for Kubernetes 2 grafana Red Hat Ceph Storage 2 grafana Red Hat Ceph Storage 3 grafana, grafana-container Red Hat Ceph Storage 4 rhceph/rhceph-4-dashboard-rhel8
    +5 more products
    Red Hat Enterprise Linux 8 grafana, grafana-loki, grafana-mssql, grafana-mysql, grafana-selinux, grafana-graphite, +8 more Red Hat Enterprise Linux 9 grafana, grafana-selinux Red Hat OpenShift Container Platform 3.11 openshift3/grafana Red Hat OpenShift Container Platform 4 openshift4/ose-grafana Red Hat Storage 3 grafana
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.61% chance of exploitation in the next 30 days, higher than 76% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
NVD 2.0 3.5 AV:N/AC:M/Au:S/C:N/I:P/A:N
OSV 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Affected packages

ecosystem package affected fixed in
bitnami grafana
>=6.0.0, <6.7.6
>=7.0.0, <7.3.10
>=7.4.0, <7.4.5
6.7.6
7.3.10
7.4.5

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.