Grafana Cross-Site-Scripting (XSS) via custom loaded frontend plugin

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 permission...

Privilege escalation vulnerability for Organizations in Grafana

A privilege escalation vulnerability allows users to gain access to resources from other organizations within the same Grafana instance via the Grafana Cloud Migration Assistant. This vulnerability will only affect users who utilize the Organizations feature to isolate resources on their Grafana...

Grafana ds proxy race condition

Grafana is an open-source platform for monitoring and observability. Using public dashboards users can query multiple distinct data sources using mixed queries. However such query has a possibility of crashing a Grafana instance. The only feature that uses mixed queries at the moment is public...

Text panel plugin XSS

Grafana is an open-source platform for monitoring and observability. On 2023-01-01 during an internal audit of Grafana, a member of the security team found a stored XSS vulnerability affecting the core plugin “Text”. The stored XSS vulnerability requires several user interactions in order to be...

Stored XSS in TraceView Panel

Grafana is an open-source platform for monitoring and observability. Starting with the 7.0 branch, Grafana had a stored XSS vulnerability in the trace view visualization. The stored XSS vulnerability was possible due the value of a span’s attributes/resources were not properly sanitized and this...

Use of Cache Containing Sensitive Information

Grafana is an open-source platform for monitoring and observability. When datasource query caching is enabled, Grafana caches all headers, including grafanasession . As a result, any user that queries a datasource where the caching is enabled can acquire another user’s session. To mitigate the...

Race condition allowing privilege escalation

Grafana is an open-source platform for monitoring and observability. Versions starting with 9.2.0 and less than 9.2.4 contain a race condition in the authentication middlewares logic which may allow an unauthenticated user to query an administration endpoint under heavy load. This issue is patche...

Forward OAuth Identity Token can allow users to access some data sources

Grafana is an open-source platform for monitoring and observability. In affected versions when a data source has the Forward OAuth Identity feature enabled, sending a query to that datasource with an API token and no other user credentials will forward the OAuth Identity of the most recently...

Grafana Alloy unquoted service path

On a windows machine, the Grafana Alloy service prior to 1.3.3 is vulnerable to a privilege escalation from local user to SYSTEM due to an unquoted service path. It is recommended that you remove the Grafana Alloy installation and do a clean install. An update will not resolve the issue. An...

Grafana Live push endpoint allows unbounded memory allocation leading to OOM

The Grafana Live push endpoint can be exploited to cause unbounded memory allocation by sending a large or streaming request body, potentially leading to out-of-memory conditions. An authenticated user with access to the Grafana Live API can trigger this issue...

S3 SSE-C Encryption Key Exposed in Plaintext via Config Endpoint

A vulnerability in Grafana Tempo exposes the S3 SSE-C encryption key in plaintext through the /status/config endpoint, potentially allowing unauthorized users to obtain the key used to encrypt trace data stored in S3. Thanks to williamgoodfellow for reporting this vulnerability...

Organization admin can delete server admin in Grafana

An access control vulnerability was discovered in Grafana 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: An Organization administrator exists...

Grafana plugins route actions are not scoped to instance

Access control for plugin data sources protected by the ReqActions json field of the plugin.json is bypassed if the user or service account is granted associated access to any other data source, as the ReqActions check was not scoped to each specific datasource. The account must have prior query...

Email verification is not required after email change

Grafana is an open-source platform for monitoring and observability. A user changing their email after signing up and verifying it can change it without verification in profile settings. The configuration option “verifyemailenabled” will only validate email only on sign up. This issue has been...

Grafana org admins can modify permissions across all orgs

Grafana is an open-source platform for monitoring and observability. The vulnerability impacts Grafana instances with several organizations, and allows a user with Organization Admin permissions in one organization to change the permissions associated with Organization Viewer, Organization Editor...

User enumeration via forget password

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...

Plugin signature bypass

Grafana is an open source observability and data visualization platform. Versions prior to 9.1.8 and 8.5.14 are vulnerable to a bypass in the plugin signature verification. An attacker can convince a server admin to download and successfully run a malicious plugin even though unsigned plugins are...

Grafana folders admin only permission privilege escalation

Grafana is an open-source platform for monitoring and observability. In versions prior to 8.5.13, 9.0.9, and 9.1.6, Grafana is subject to Improper Preservation of Permissions resulting in privilege escalation on some folders where Admin is the only used permission. The vulnerability impacts Grafa...

Grafana datasource network restrictions bypass via HTTP redirects

Grafana is an open-source platform for monitoring and observability. In Grafana, the Request security feature allows list allows to configure Grafana in a way so that the instance does not call or only calls specific hosts. The vulnerability present starting with version 7.4.0-beta1 and prior to...

Grafana Teams API IDOR

Grafana is an open-source platform for monitoring and observability. Affected versions of Grafana expose multiple API endpoints which do not properly handle user authorization. /teams/:teamId will allow an authenticated attacker to view unintended data by querying for the specific team ID,...

Cross-Tenant Legacy Correlation Disclosure and Deletion

A cross-tenant isolation vulnerability was found in Grafana’s Correlations feature affecting legacy correlation records. Due to a backward compatibility condition allowing orgid = 0 records to be returned across organizations, a user with datasource management privileges could read and permanentl...

Grafana SQL Expressions allow for remote code execution

The SQL Expressions experimental feature of Grafana allows for the evaluation of duckdb queries containing user input. These queries are insufficiently sanitized before being passed to duckdb , leading to a command injection and local file inclusion vulnerability. Any user with the VIEWER or high...

XSS In Geomap Via Attribution

Grafana is an open-source platform for monitoring and observability. Starting with the 8.1 branch, Grafana had a stored XSS vulnerability affecting the core plugin GeoMap. The stored XSS vulnerability was possible due to map attributions weren’t properly sanitized and allowed arbitrary JavaScript...

Data source and plugin proxy endpoints could leak the authentication cookie to some destination plugins

Grafana is an open source observability and data visualization platform. Starting with version 5.0.0-beta1 and prior to versions 8.5.14 and 9.1.8, Grafana could leak the authentication cookie of users to plugins. The vulnerability impacts data source and plugin proxy endpoints under certain...

Grafana account takeover via OAuth vulnerability

Grafana is an open-source platform for monitoring and observability. In versions 5.3 until 9.0.3, 8.5.9, 8.4.10, and 8.3.10, it is possible for a malicious user who has authorization to log into a Grafana instance via a configured OAuth IdP which provides a login name to take over the account of...

Stored XSS in Unified Alerting

Grafana is an open-source platform for monitoring and observability. Versions on the 8.x and 9.x branch prior to 9.0.3, 8.5.9, 8.4.10, and 8.3.10 are vulnerable to stored cross-site scripting via the Unified Alerting feature of Grafana. An attacker can exploit this vulnerability to escalate...

Grafana authentication bypass using Azure AD OAuth

Grafana is validating Azure AD accounts based on the email claim. On Azure AD, the profile email field is not unique and can be easily modified. This leads to account takeover and authentication bypass when Azure AD OAuth is configured with a multi-tenant app...

Grafana WorldMap Panel Plugin DOM XSS

Grafana is an open-source platform for monitoring and observability. The WorldMap panel plugin, versions before 1.0.4 contains a DOM XSS vulnerability...

Broken Access Control in Alert manager: Viewer can send test alerts

Grafana is an open-source platform for monitoring and observability. The option to send a test alert is not available from the user panel UI for users having the Viewer role. It is still possible for a user with the Viewer role to send a test alert using the API as the API does not check access t...

JWT URL-login flow leaks token to data sources through request parameter in proxy requests

Grafana is an open-source platform for monitoring and observability. Starting with the 9.1 branch, Grafana introduced the ability to search for a JWT in the URL query parameter authtoken and use it as the authentication token. By enabling the “urllogin” configuration option disabled by default, a...

Stored XSS in ResourcePicker component

Grafana is an open-source platform for monitoring and observability. Starting with the 8.1 branch and prior to versions 8.5.16, 9.2.10, and 9.3.4, Grafana had a stored XSS vulnerability affecting the core plugin GeoMap. The stored XSS vulnerability was possible because SVG files weren’t properly...

Email addresses and usernames can not be trusted

Grafana is an open-source platform for monitoring and observability. Versions prior to 9.2.4, or 8.5.15 on the 8.X branch, are subject to Improper Input Validation. Grafana admins can invite other members to the organization they are an admin for. When admins add members to the organization, non...

Using email as a username can block other users from signing in

Grafana is an open source data visualization platform for metrics, logs, and traces. Versions prior to 9.1.8 and 8.5.14 allow one user to block another user’s login attempt by registering someone else’e email address as a username. A Grafana user’s username and email address are unique fields, th...

Escalation from admin to server admin when auth proxy is used

Grafana is an open-source platform for monitoring and observability. Versions prior to 9.1.6 and 8.5.13 are vulnerable to an escalation from admin to server admin when auth proxy is used, allowing an admin to take over the server admin account and gain full control of the grafana instance. All...

Grafana Alerting VictorOps integration exposed to Viewers

Grafana is an open-source platform for monitoring and observability. The Grafana Alerting VictorOps integration was not properly protected and could be exposed to users with Viewer permission. Fixed in versions 11.5.0, 11.4.1, 11.3.3, 11.2.6, 11.1.11, 11.0.11 and 10.4.15...

Spoofing originalUrl of snapshots

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...

Grafana proxy XSS

Grafana is an open-source platform for monitoring and observability. In affected versions an attacker could serve HTML content thru the Grafana datasource or plugin proxy and trick a user to visit this HTML page using a specially crafted link and execute a Cross-site Scripting XSS attack. The...

Regex DoS in Zabbix Plugin in Grafana

Grafana is an open-source platform for monitoring and observability. Grafana-Zabbix is a plugin for Grafana allowing to visualize monitoring data from Zabbix and create dashboards for analyzing metrics and realtime monitoring. Versions 5.2.1 and below contained a ReDoS vulnerability via...

Grafana fine-grained access control API Key privilege escalation

Grafana is an open-source platform for monitoring and observability. When fine-grained access control is enabled and a client uses Grafana API Key to make requests, the permissions for that API Key are cached for 30 seconds for the given organization. Because of the way the cache ID is constructe...

Grafana Cross Site Request Forgery

Grafana is an open-source platform for monitoring and observability. Affected versions are subject to a cross site request forgery vulnerability which allows attackers to elevate their privileges by mounting cross-origin attacks against authenticated high-privilege Grafana users for example,...

SearchUsersPermissions returns cross-org users

This vulnerability only affects Grafana stacks configured with multiple organizations; single-organization deployments are not impacted. In a multi-organization stack, a user who is an Org Admin of a single organization can call GET...

DoS Vulnerability in Templates Test endpoint

The alertmanager templates test endpoint /api/alertmanager/grafana/config/api/v1/templates/test can execute templates with no memory limits. Mass-executing templates in a short period causes OOM and crashes the Grafana service. The endpoint requires very low privileges and is exploitable with...

Loki detected_fields query limits results in unbounded memory allocation

The Loki detectedfields endpoint allocates 2limit elements in slices and maps based on the user-supplied limit query parameter, regardless of actual result count. A massive limit value e.g. 600000000 allocates 20-30 GiB even with zero matching results, causing OOM, resulting in denial of service...

Pre-authentication denial of service in the OAuth login route

An unauthenticated attacker can repeatedly call Grafana’s OAuth login route with unique values, causing unbounded memory growth that can eventually exhaust memory and crash the Grafana instance denial of service. Upgrade to a fixed version listed below...

Stored XSS in the table panel (TableNG)

A user with Editor permissions can craft a dashboard whose table TableNG panel contains a malicious field name that executes as a script in the browser of any user who views the dashboard stored cross-site scripting. Upgrade to a fixed version listed below...

Grafana denial of service via oversized request bodies (web.Bind)

Several Grafana API endpoints, some of them unauthenticated, do not limit the size of the request body before processing it. An attacker can send very large payloads that force excessive memory allocation, potentially exhausting memory and causing a denial of service. Upgrade to a fixed version...

Pre-authentication denial of service in the public dashboard query handler

The public dashboard query endpoint does not limit request body size before processing, allowing unauthenticated attackers to trigger excessive memory allocation by sending arbitrarily large JSON payloads. This can lead to denial of service through memory exhaustion. No valid dashboard access tok...

Tempo query limit results in unbounded memory allocation

If an attacker can submit Tempo queries with large limits, they can trigger unbounded memory allocations, which can impact the availability of the service. As a mitigation, set maxresultlimit in the search configuration for example, 262144 / 2^18 . Alternatively, automatically restart the service...

Grafana MCP server-side request forgery via X-Grafana-URL header (grafana_api_request)

A caller who can invoke the grafanaapirequest tool can supply an X-Grafana-URL request header to control the destination of mcp-grafana’s outbound requests, and can also choose the HTTP method, path, and body. Because the destination isn’t restricted to the configured Grafana instance, the caller...

CVE-2026-15583

A vulnerability has been discovered in the mcp-grafana project https://github.com/grafana/mcp-grafana where a confused-deputy flaw allows an unauthenticated remote attacker to exfiltrate the server’s environment-configured Grafana service-account token by supplying a crafted X-Grafana-URL request...