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CVE-2026-11769 — Vulnerability in...

MEDIUM

Grafana Operator: Privilege escalation from namespace admin to cluster admin via GrafanaDashboard jsonnetLib fileName

Published June 19, 2026Updated June 25, 2026Source: osv

Summary

We have released version 5.24.0 of the Grafana Operator. This patch includes a MODERATE severity security fix for a path traversal/privilege escalation vulnerability in the Grafana Operator. ### Summary The Grafana Operator supports loading dashboards & library panels using the jsonnet data templating language. The jsonnet expression is evaluated in the context of the operator manager pod. ### Impact It is possible for a malicious user who can create `Dashboard` or `LibraryPanel` resources for a `Grafana` instance to obtain the Kubernetes service account token of the Grafana Operator manager. ### Affected versions All Grafana Operator versions <= 5.23 ### Solutions and mitigations All installations should be upgraded as soon as possible. As a workaround, the following ValidatingAdmissionPolicy prevent the creation or modification of jsonnet based resources: ``` apiVersion: admissionregistration.k8s.io/v1 kind: ValidatingAdmissionPolicy metadata: name: "prevent-jsonnet-dashboards" spec: failurePolicy: Fail matchConstraints: resourceRules: - apiGroups: ["grafana.integreatly.org"] apiVersions: ["v1beta1"] operations: ["CREATE", "UPDATE"] resources: ["grafanadashboards", "grafanalibrarypanels"] validations: - expression: "!has(object.spec.jsonnetLib)" --- apiVersion: admissionregistration.k8s.io/v1 kind: ValidatingAdmissionPolicyBinding metadata: name: "prevent-jsonnet-dashboards-clusterwide" spec: policyName: "prevent-jsonnet-dashboards" validationActions: [Deny] ``` ### Acknowledgement We would like to thank [Artem Cherezov](https://github.com/cherez0ff) for responsibly disclosing the vulnerability.

Advisory Timeline

  • First published June 19, 2026 (115 days ago).
  • Last revised June 25, 2026 — 6 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

Go
Update github.com/grafana/grafana-operator/v5 to 5.24.0 or later
go get github.com/grafana/grafana-operator/v5@v5.24.0

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (2)

Affects 1 ecosystem: go (2).

PackageEcosystemAffectedFixed In
github.com/grafana/grafana-operator
go
All versionsRange-based data available
github.com/grafana/grafana-operator/v5
go
All versions5.24.0

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 9.6 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
—
Confidentiality
—
Integrity
—
Availability
—

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N

Frequently Asked Questions

What is CVE-2026-11769?
Grafana Operator: Privilege escalation from namespace admin to cluster admin via GrafanaDashboard jsonnetLib fileName This vulnerability has been assigned a severity rating of MEDIUM (CVSS score: 9.6/10).
How do I check if my project is affected by CVE-2026-11769?
CVE-2026-11769 affects github.com/grafana/grafana-operator and github.com/grafana/grafana-operator/v5. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2026-11769 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
9.6

Exploitation is straightforward and causes maximum impact. Patch immediately.

Also Known As

GHSA-fcw4-wwqm-m8cf
GO-2026-5355

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