CVE-2026-107365
Description
A flaw was found in Grafana. An authenticated user with query permissions can redirect Google Cloud Monitoring data source requests to unauthorized API endpoints. This issue can lead to information disclosure by exposing sensitive data across accessible cloud projects, and may allow unauthorized modifications depending on the permissions of the configured credentials.
Statement
This vulnerability is rated as Moderate because exploitation requires an authenticated user with permissions to query a configured Google Cloud Monitoring data source, preventing unauthenticated remote abuse. In Red Hat environments, Grafana is not configured with Google Cloud Monitoring integrations by default. The exposure is further constrained by the specific permissions assigned to the underlying data source credentials in Google Cloud.
Mitigation
To mitigate this vulnerability, enforce least-privilege access controls and disable credential forwarding on the Google Cloud Monitoring data source:
1. Configure the data source with service account credentials restricted strictly to read-only Cloud Monitoring roles on explicitly designated Google Cloud projects.
2. Ensure that "Forward OAuth Identity" and "Workload Identity Federation" settings are disabled on the affected data source.
3. If Google Cloud Monitoring is not required, remove the data source from Grafana or restrict data source query permissions to administrative users.
Warning: If data sources are provisioned via configuration files on the host, applying changes may require restarting the service (`systemctl restart grafana-server`), which will cause a brief interruption of service. Restricting credentials will prevent users from accessing metrics outside designated projects.
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).
The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 5.3 | N/A | N/A |
| Attack Vector | Network | N/A | N/A |
| Attack Complexity | Low | N/A | N/A |
| Privileges Required | None | N/A | N/A |
| User Interaction | None | N/A | N/A |
| Scope | Unchanged | N/A | N/A |
| Confidentiality | Low | N/A | N/A |
| Integrity Impact | None | N/A | N/A |
| Availability Impact | None | N/A | N/A |
Vector
Red Hat: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Understanding the Weakness (CWE)
Confidentiality
Technical Impact: Read Application Data
Integrity
Technical Impact: Execute Unauthorized Code or Commands
Access Control
Technical Impact: Bypass Protection Mechanism
By providing URLs to unexpected hosts or ports, attackers can make it appear that the server is sending the request, possibly bypassing access controls such as firewalls that prevent the attackers from accessing the URLs directly. The server can be used as a proxy to conduct port scanning of hosts in internal networks, use other URLs such as that can access documents on the system (using file://), or use other protocols such as gopher:// or tftp://, which may provide greater control over the contents of requests.
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