Grafana: >> Grafana >> 1.6.0 Security Vulnerabilities
---
title: Cross-Tenant Legacy Correlation Disclosure and Deletion
draft: false
hero:
image: /static/img/heros/hero-legal2.svg
content: "# Cross-Tenant Legacy Correlation Disclosure and Deletion"
date: 2026-01-29
product: Grafana
severity: Low
cve: CVE-2026-21727
cvss_score: "3.3"
cvss_vector: "CVSS:3.3/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:N"
fixed_versions:
- ">=11.6.11 >=12.0.9 >=12.1.6 >=12.2.4"
---
A cross-tenant isolation vulnerability was found in Grafana’s Correlations feature affecting legacy correlation records. Due to a backward compatibility condition allowing org_id = 0 records to be returned across organizations, a user with datasource management privileges could read and permanently delete legacy correlation data belonging to another organization. This issue affects correlations created prior to Grafana 10.2 and is fixed in >=11.6.11, >=12.0.9, >=12.1.6, and >=12.2.4.
Thanks to Gyu-hyeok Lee (g2h) for reporting this vulnerability.
CVSS Score
3.3
EPSS Score
0.0
Published
2026-04-15
When using public dashboards and direct data-sources, all direct data-sources' passwords are exposed despite not being used in dashboards.
No passwords of proxied data-sources are exposed. We encourage all direct data-sources to be converted to proxied data-sources as far as possible to improve your deployments' security.
CVSS Score
6.5
EPSS Score
0.0
Published
2026-03-27
A resample query can be used to trigger out-of-memory crashes in Grafana.
CVSS Score
6.5
EPSS Score
0.0
Published
2026-03-27
The OpenFeature feature toggle evaluation endpoint reads unbounded values into memory, which can cause out-of-memory crashes.
CVSS Score
7.5
EPSS Score
0.0
Published
2026-03-27
A testdata data-source can be used to trigger out-of-memory crashes in Grafana.
CVSS Score
6.5
EPSS Score
0.0
Published
2026-03-27
A chained attack via SQL Expressions and a Grafana Enterprise plugin can lead to a remote arbitrary code execution impact (RCE). This is enabled by a feature in Grafana (OSS), so all users are always recommended to update to avoid future attack vectors going this path.
Only instances with the sqlExpressions feature toggle enabled are vulnerable.
Only instances in the following version ranges are affected:
- 11.6.0 (inclusive) to 11.6.14 (exclusive): 11.6.14 has the fix. 11.5 and below are not affected.
- 12.0.0 (inclusive) to 12.1.10 (exclusive): 12.1.10 has the fix. 12.0 did not receive an update, as it is end-of-life.
- 12.2.0 (inclusive) to 12.2.8 (exclusive): 12.2.8 has the fix.
- 12.3.0 (inclusive) to 12.3.6 (exclusive): 12.3.6 has the fix.
- 12.4.0 (inclusive) to 12.4.2 (exclusive): 12.4.2 has the fix. 13.0.0 and above also have the fix: no v13 release is affected.
CVSS Score
9.1
EPSS Score
0.001
Published
2026-03-27
A cross-site scripting (XSS) vulnerability exists in Grafana caused by combining a client path traversal and open redirect. This allows attackers to redirect users to a website that hosts a frontend plugin that will execute arbitrary JavaScript. This vulnerability does not require editor permissions and if anonymous access is enabled, the XSS will work. If the Grafana Image Renderer plugin is installed, it is possible to exploit the open redirect to achieve a full read SSRF.
The default Content-Security-Policy (CSP) in Grafana will block the XSS though the `connect-src` directive.
CVSS Score
7.6
EPSS Score
0.039
Published
2025-05-22
A user changing their email after signing up and verifying it can change it without verification in profile settings.
The configuration option "verify_email_enabled" will only validate email only on sign up.
CVSS Score
5.4
EPSS Score
0.002
Published
2024-02-13
Grafana is an open-source platform for monitoring and observability. Prior to versions 8.5.16 and 9.2.8, malicious user can create a snapshot and arbitrarily choose the `originalUrl` parameter by editing the query, thanks to a web proxy. When another user opens the URL of the snapshot, they will be presented with the regular web interface delivered by the trusted Grafana server. The `Open original dashboard` button no longer points to the to the real original dashboard but to the attacker’s injected URL. This issue is fixed in versions 8.5.16 and 9.2.8.
CVSS Score
6.7
EPSS Score
0.002
Published
2023-01-27
Grafana is an open-source platform for monitoring and observability. When using the forget password on the login page, a POST request is made to the `/api/user/password/sent-reset-email` URL. When the username or email does not exist, a JSON response contains a “user not found” message. This leaks information to unauthenticated users and introduces a security risk. This issue has been patched in 9.2.4 and backported to 8.5.15. There are no known workarounds.
CVSS Score
6.7
EPSS Score
0.002
Published
2022-11-09
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