Grafana Alerting Editors can edit destination of webhooks they did not create
In Grafana's alerting system, users with edit permissions for a contact point, specifically the permissions “alert.notifications:write” or “alert.notifications.receivers:test” that are granted as part of the fixed role "Contact Point Writer", which is part of the basic role Editor - can edit contact points created by other users, modify the endpoint URL to a controlled server. By invoking the test functionality, attackers can capture and extract redacted secure settings, such as authentication credentials for third-party services (e.g., Slack tokens). This leads to unauthorized access and potential compromise of external integrations.
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
Public dashboards discloses all direct mode datasources
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.
Missing Protected-field Authorization in Provisioning Contact Points API
A vulnerability has been discovered in Grafana OSS where an authorization bypass in the provisioning contact points API allows users with Editor role to modify protected webhook URLs without the required alert.notifications.receivers.protected:write permission.
Authorization Bypass via TOCTOU in Grafana Datasource Deletion by Name
A time-of-create-to-time-of-use (TOCTOU) vulnerability lets recently deleted-then-recreated data sources be re-deleted without permission to do so.
This requires several very stringent conditions to be met:
- The attacker must have admin access to the specific datasource prior to its first deletion.
- Upon deletion, all steps within the attack must happen within the next 30 seconds and on the same pod of Grafana.
- The attacker must delete the datasource, then someone must recreate it.
- The new datasource must not have the attacker as an admin.
- The new datasource must have the same UID as the prior datasource. These are randomised by def
Stack traces in Grafana's Explore Traces view can be rendered as raw HTML, and thus inject malicious JavaScript in the browser. This would require malicious JavaScript to be entered into the stack trace field.
Only datasources with the Jaeger HTTP API appear to be affected; Jaeger gRPC and Tempo do not appear affected whatsoever.
Public Dashboards time range restriction on annotations can be bypassed
Public dashboards with annotations enabled did not limit their annotation timerange to the locked timerange of the public dashboard. This means one could read the entire history of annotations visible on the specific dashboard, even those outside the locked timerange.
This did not leak any annotations that would not otherwise be visible on the public dashboard.
The dashboard permissions API does not verify the target dashboard scope and only checks the dashboards.permissions:* action. As a result, a user who has permission management rights on one dashboard can read and modify permissions on other dashboards. This is an organization‑internal privilege escalation.
Unauthenticated DoS: avatar cache leaks goroutines when /avatar/:hash requests time out
Every uncached /avatar/:hash request spawns a goroutine that refreshes the Gravatar image. If the refresh sits in the 10-slot worker queue longer than three seconds, the handler times out and stops listening for the result, so that goroutine blocks forever trying to send on an unbuffered channel. Sustained traffic with random hashes keeps tripping this timeout, so goroutine count grows linearly, eventually exhausting memory and causing Grafana to crash on some systems.
An open redirect vulnerability has been identified in Grafana OSS organization switching functionality.
Prerequisites for exploitation:
- Multiple organizations must exist in the Grafana instance
- Victim must be on a different organization than the one specified in the URL
An open redirect vulnerability has been identified in Grafana OSS that can be exploited to achieve XSS attacks. The vulnerability was introduced in Grafana v11.5.0.
The open redirect can be chained with path traversal vulnerabilities to achieve XSS.
Fixed in versions 12.0.2+security-01, 11.6.3+security-01, 11.5.6+security-01, 11.4.6+security-01 and 11.3.8+security-01
Grafana is an open-source platform for monitoring and observability. The Grafana Alerting DingDing integration was not properly protected and could be exposed to users with Viewer permission.
Fixed in versions 10.4.19+security-01, 11.2.10+security-01, 11.3.7+security-01, 11.4.5+security-01, 11.5.5+security-01, 11.6.2+security-01 and 12.0.1+security-01
Very long unicode dashboard title or panel name can hang the frontend
In Grafana, an excessively long dashboard title or panel name will cause Chromium browsers to become unresponsive due to Improper Input Validation vulnerability in Grafana.
This issue affects Grafana: before 11.6.2 and is fixed in 11.6.2 and higher.
This vulnerability in Grafana's datasource proxy API allows authorization checks to be bypassed by adding an extra slash character in the URL path.
Users with minimal permissions could gain unauthorized read access to GET endpoints in Alertmanager and Prometheus datasources.
The issue primarily affects datasources that implement route-specific permissions, including Alertmanager and certain Prometheus-based datasources.
A security vulnerability in the /apis/dashboard.grafana.app/* endpoints allows authenticated users to bypass dashboard and folder permissions. The vulnerability affects all API versions (v0alpha1, v1alpha1, v2alpha1).
Impact:
- Viewers can view all dashboards/folders regardless of permissions
- Editors can view/edit/delete all dashboards/folders regardless of permissions
- Editors can create dashboards in any folder regardless of permissions
- Anonymous users with viewer/editor roles are similarly affected
Organization isolation boundaries remain intact. The vulnerability only affects dashboard access and does not grant access to dataso
An access control vulnerability was discovered in Grafana OSS where an Organization administrator could permanently delete the Server administrator account. This vulnerability exists in the DELETE /api/org/users/ endpoint.
The vulnerability can be exploited when:
1. An Organization administrator exists
2. The Server administrator is either:
- Not part of any organization, or
- Part of the same organization as the Organization administrator
Impact:
- Organization administrators can permanently delete Server administrator accounts
- If the only Server administrator is deleted, the Grafana instance becomes unmanageable
- No super-us
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.