GHSA-V82C-5C2Q-HX9G

Vulnerability from github – Published: 2026-06-13 06:30 – Updated: 2026-06-19 20:50
Withdrawn 2026-06-19 VLAI
Summary
Duplicate Advisory: Privilege escalation from namespace admin to cluster admin via GrafanaDashboard jsonnetLib fileName
Details

Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-fcw4-wwqm-m8cf. This link is maintained to preserve external references.

Original Description

We have released version 5.24.0 of the Grafana Operator. This patch includes a CRITICAL 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 for responsibly disclosing the vulnerability.

Show details on source website

{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/grafana/grafana-operator"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "5.23.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [
      "CWE-22"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-06-19T20:50:34Z",
    "nvd_published_at": "2026-06-13T06:16:14Z",
    "severity": "MODERATE"
  },
  "details": "## Duplicate Advisory\n\nThis advisory has been withdrawn because it is a duplicate of\u00a0GHSA-fcw4-wwqm-m8cf. This link is maintained to preserve external references.\n\n## Original Description\nWe have released version 5.24.0 of the Grafana Operator. This patch includes a CRITICAL severity security fix for a path traversal/privilege escalation vulnerability in the Grafana Operator.\n\n\n\n### Summary\n\n\n\nThe Grafana Operator supports loading dashboards \u0026 library panels using the jsonnet data templating language. The jsonnet expression is evaluated in the context of the operator manager pod.\n\n\n\n### Impact\n\n\n\nIt 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.\n\n\n\n### Affected versions\n\n\n\nAll Grafana Operator versions \u003c= 5.23\n\n\n\n### Solutions and mitigations\n\n\n\nAll installations should be upgraded as soon as possible.\n\n\n\nAs a workaround, the following ValidatingAdmissionPolicy prevent the creation or modification of jsonnet based resources:\n\n\n\napiVersion: admissionregistration.k8s.io/v1\n\n\n\nkind: ValidatingAdmissionPolicy\n\n\n\nmetadata:\n\n  name: \"prevent-jsonnet-dashboards\"\n\n\nspec:\n\n  failurePolicy: Fail\n  matchConstraints:\n    resourceRules:\n      - apiGroups: [\"grafana.integreatly.org\"]\n        apiVersions: [\"v1beta1\"]\n        operations: [\"CREATE\", \"UPDATE\"]\n        resources: [\"grafanadashboards\", \"grafanalibrarypanels\"]\n  validations:\n    - expression: \"!has(object.spec.jsonnetLib)\"\n\n\n---\n\n\n\napiVersion: admissionregistration.k8s.io/v1\n\n\n\nkind: ValidatingAdmissionPolicyBinding\n\n\n\nmetadata:\n\n  name: \"prevent-jsonnet-dashboards-clusterwide\"\n\n\nspec:\n\n  policyName: \"prevent-jsonnet-dashboards\"\n  validationActions: [Deny]\n\n\n### Acknowledgement\n\n\n\nWe would like to thank Artem Cherezov for responsibly disclosing the vulnerability.",
  "id": "GHSA-v82c-5c2q-hx9g",
  "modified": "2026-06-19T20:50:34Z",
  "published": "2026-06-13T06:30:23Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-11769"
    },
    {
      "type": "WEB",
      "url": "https://grafana.com/security/security-advisories/cve-2026-11769"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Duplicate Advisory: Privilege escalation from namespace admin to cluster admin via GrafanaDashboard jsonnetLib fileName",
  "withdrawn": "2026-06-19T20:50:34Z"
}



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