CVE-2026-12933
Description
A flaw was found in Grafana. The Recorded Queries remote-write target creation endpoint validates target connections using elevated credentials before verifying whether the caller has permission to access the underlying data source. An authenticated attacker with organization editor privileges can exploit this flaw to send authenticated HTTP requests to arbitrary paths on a connected data source host and infer sensitive information from upstream responses.
Statement
This vulnerability is rated as Moderate severity because exploitation requires authenticated Organization Editor privileges and is restricted to proprietary Enterprise functionality rather than standard Grafana components. Red Hat products distribute the open source (OSS) release of Grafana, which does not include the Enterprise-specific Recorded Queries capability. Consequently, default and standard Red Hat deployments do not expose the vulnerable endpoint.
Mitigation
Disable Recorded Queries until the security update is installed, or restrict Editor access to trusted users and restrict the data source credentials and network access.
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 | 6.4 | N/A | N/A |
| Attack Vector | Network | N/A | N/A |
| Attack Complexity | High | N/A | N/A |
| Privileges Required | Low | N/A | N/A |
| User Interaction | Required | N/A | N/A |
| Scope | Unchanged | N/A | N/A |
| Confidentiality | High | N/A | N/A |
| Integrity Impact | High | N/A | N/A |
| Availability Impact | None | N/A | N/A |
Vector
Red Hat: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/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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