6.5

CVE-2021-28146: grafana Incorrect Authorization

Modified
AliasesALPINE-CVE-2021-28146
Published 22-03-2021Last modified 03-08-2024

Vulnerability summary

CVE-2021-28146 is a medium (CVSS 6.5) Incorrect Authorization vulnerability in grafana. EPSS estimates a 1.40% chance of exploitation in the next 30 days, higher than 72.4% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 6.5, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
6.5/10
010
Medium · v3.1 (NVD)
EPSS score
1.40%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 8 · Related 8
OPENSUSE-SU-2021:1148-1OPENSUSE-SU-2021:1162-1OPENSUSE-SU-2021:2662-1OPENSUSE-SU-2021:2675-1OPENSUSE-SU-2024:10818-1SUSE-SU-2021:2660-1

Timeline

  1. 22-03-2021
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

1.40%

Chance of exploitation in the next 30 days

Percentile

72%

Versus all other CVEs

30-day change

No change 0.00 pp

From 1.40% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Alpine1 product
  • grafana≥ 7.4.0, < 7.4.5-r0
Grafana1 product

2 vendors · 2 products

References

8 links