CVE-2026-76154
Description
A flaw was found in Grafana. A user with an Editor role can exploit a stored cross-site scripting (XSS) vulnerability in the Geomap panel. This occurs because the Geomap panel loads map styles from a URL and inserts the style's attribution field into the page without proper sanitization. By controlling the map style, an attacker can execute arbitrary JavaScript in the browser of anyone viewing the dashboard. If an Organization Administrator views the dashboard, the attacker's script can elevate their own account to Organization Administrator, leading to privilege escalation and unauthorized access to organizational dashboards, data source configurations, and credentials.
Statement
Important: A stored cross-site scripting vulnerability in the Grafana Geomap panel allows an authenticated attacker with Editor privileges to escalate their privileges to Org Admin. This is due to unsanitized input in the MapLibre style base layer's attribution field, which can execute arbitrary JavaScript in an administrator's browser session when they view a crafted dashboard. The Geomap panel is enabled by default, requiring no special configuration for exploitation.
Mitigation
To mitigate this issue, disable the Geomap plugin. This can be achieved by setting `disable_plugins = geomap` in the `[plugins]` section of the `grafana.ini` configuration file, or by setting the environment variable `GF_PLUGINS_DISABLE_PLUGINS=geomap`. A restart of the Grafana service is required for the changes to take effect. Disabling the plugin will remove the Geomap panel and may affect existing dashboards that utilize it.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 7.3 | N/A | 7.3 |
| Attack Vector | Network | N/A | Network |
| Attack Complexity | Low | N/A | Low |
| Privileges Required | None | N/A | Low |
| User Interaction | None | N/A | Required |
| Scope | Unchanged | N/A | Unchanged |
| Confidentiality | Low | N/A | High |
| Integrity Impact | Low | N/A | High |
| Availability Impact | Low | N/A | None |
Vector
Red Hat: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
cve.org: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
Understanding the Weakness (CWE)
Access Control,Confidentiality
Technical Impact: Bypass Protection Mechanism; Read Application Data
The most common attack performed with cross-site scripting involves the disclosure of private information stored in user cookies, such as session information. Typically, a malicious user will craft a client-side script, which -- when parsed by a web browser -- performs some activity on behalf of the victim to an attacker-controlled system (such as sending all site cookies to a given E-mail address). This could be especially dangerous to the site if the victim has administrator privileges to manage that site. This script will be loaded and run by each user visiting the web site. Since the site requesting to run the script has access to the cookies in question, the malicious script does also.
Integrity,Confidentiality,Availability
Technical Impact: Execute Unauthorized Code or Commands
In some circumstances it may be possible to run arbitrary code on a victim's computer when cross-site scripting is combined with other flaws, for example, "drive-by hacking."
Confidentiality,Integrity,Availability,Access Control
Technical Impact: Execute Unauthorized Code or Commands; Bypass Protection Mechanism; Read Application Data
The consequence of an XSS attack is the same regardless of whether it is stored or reflected. The difference is in how the payload arrives at the server. XSS can cause a variety of problems for the end user that range in severity from an annoyance to complete account compromise. Some cross-site scripting vulnerabilities can be exploited to manipulate or steal cookies, create requests that can be mistaken for those of a valid user, compromise confidential information, or execute malicious code on the end user systems for a variety of nefarious purposes. Other damaging attacks include the disclosure of end user files, installation of Trojan horse programs, redirecting the user to some other page or site, running "Active X" controls (under Microsoft Internet Explorer) from sites that a user perceives as trustworthy, and modifying presentation of content.
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