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CVE-2021-41244

CRITICAL
Published 2021-11-15T20:05:11
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CVSS Score

V3.1
9.1
/10
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2025.03.14
0.005
probability
of exploitation in the wild

There is a 0.5% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-06-25
Exploit Probability
Percentile: 0.661
Higher than 66.1% of all CVEs

Attack Vector Metrics

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED

Impact Metrics

Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Description

Grafana is an open-source platform for monitoring and observability. In affected versions when the fine-grained access control beta feature is enabled and there is more than one organization in the Grafana instance admins are able to access users from other organizations. Grafana 8.0 introduced a mechanism which allowed users with the Organization Admin role to list, add, remove, and update users’ roles in other organizations in which they are not an admin. With fine-grained access control enabled, organization admins can list, add, remove and update users' roles in another organization, where they do not have organization admin role. All installations between v8.0 and v8.2.3 that have fine-grained access control beta enabled and more than one organization should be upgraded as soon as possible. If you cannot upgrade, you should turn off the fine-grained access control using a feature flag.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

✓ GitHub Reviewed CRITICAL

Grafana Fine-grained access control vulnerability

GHSA-mpwp-42x6-4wmx

Advisory Details

### Impact On Nov. 2, during an internal security audit, we discovered that when the fine-grained access control beta feature is enabled and there is more than one organization in the Grafana instance, Grafana 8.0 introduced a mechanism which allowed users with the Organization Admin role to list, add, remove, and update users’ roles in other organizations in which they are not an admin. ### Patches Fixed in 8.2.4 ### Workarounds All installations between v8.0 and v8.2.3 that have fine-grained access control beta enabled and more than one organization should be upgraded as soon as possible. If you cannot upgrade, you should turn off the fine-grained access control using a [feature flag](https://grafana.com/docs/grafana/latest/enterprise/access-control/#enable-fine-grained-access-control/). Grafana Cloud instances have not been affected by the vulnerability. ### Reporting security issues If you think you have found a security vulnerability, please send a report to [email protected]. This address can be used for all of Grafana Labs' open source and commercial products (including, but not limited to Grafana, Grafana Cloud, Grafana Enterprise, and grafana.com). We can accept only vulnerability reports at this address. We would prefer that you encrypt your message to us by using our PGP key. The key fingerprint is F988 7BEA 027A 049F AE8E 5CAA D125 8932 BE24 C5CA The key is available from keyserver.ubuntu.com. ### Security announcements We maintain a [security category on our blog](https://grafana.com/tags/security/), where we will always post a summary, remediation, and mitigation details for any patch containing security fixes. You can also subscribe to our [RSS feed](https://grafana.com/tags/security/index.xml).

Affected Packages

Go github.com/grafana/grafana
ECOSYSTEM: ≥8.0.0 <8.2.4

CVSS Scoring

CVSS Score

9.0

CVSS Vector

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

Advisory provided by GitHub Security Advisory Database. Published: May 14, 2024, Modified: May 14, 2024

References

Published: 2021-11-15T20:05:11
Last Modified: 2024-08-04T03:08:31.510Z
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