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Fencer Vulns
medium 6.5

CVE-2021-28146 json

The team sync HTTP API in Grafana Enterprise 7.4.x before 7.4.5 has an Incorrect Access Control issue.

published 2021-03-22 5 y ago modified 2026-09-08 2 mo ago also BIT-grafana-2021-28146 , EUVD-2021-14844

cvss
6.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.4%
EPSS 1.4% chance of exploitation in 30 days, percentile 72%
public exploits
0
none known

Summary

The team sync HTTP API in Grafana Enterprise 7.4.x before 7.4.5 has an Incorrect Access Control issue. On Grafana instances using an external authentication service, this vulnerability allows any authenticated user to add external groups to existing teams. This can be used to grant a user team permissions that the user isn't supposed to have.

Patch / fix

  • bitnami grafana 7.4.5
  • grafana grafana 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

  • grafana openSUSE Tumbleweed 7.5.7-1.2
  • 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

opensuse advisories openSUSE-SU-2024:10818-1openSUSE-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-2021-28146

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

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-2021-28146 updated cvss 6.8

grafana: Authorization bypass 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

1.40% chance of exploitation in the next 30 days, higher than 72% of all scored CVEs (FIRST EPSS, 2026-11-08).

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 4.0 AV:N/AC:L/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
>=7.4.0, <7.4.5
7.4.5

Classification

Weakness

References

Sources

Fencer Vulns 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.