Grafana legacy correlations allow cross-tenant disclosure and deletion

{
  "id": "e3a27745c6e9d67b2dbc2469e35c2b264c688987bd1e8f506362da98c6684764",
  "url": "https://osv.dev/vulnerability/GHSA-p5x9-j974-rpfp",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Grafana legacy correlations allow cross-tenant disclosure and deletion",
    "summary": "--- hero: image: /static/img/heros/hero-legal2.svg content: \"# Cross-Tenant Legacy Correlation Disclosure and Deletion\" date: 2026-01-29 product: Grafana fixed_versions: - \">=11.6.11 >=12.0.9 >=12.1.6 >=12.2.4\" --- A cross-tenant isolation vulnerability was found in Grafana’s Correlations feature affecting legacy correlation records. Due to a backward compatibility condition allowing org_id = 0 records to be returned across organizations, a user with datasource management privileges could read and permanently delete legacy correlation data belonging to another organization. This issue affects correlations created prior to Grafana 10.2 and is fixed in >=11.6.11, >=12.0.9, >=12.1.6, and >=12.2.4. Thanks to Gyu-hyeok Lee (g2h) for reporting this vulnerability.",
    "evidence": "osv:GHSA-p5x9-j974-rpfp",
    "products": [
      {
        "name": {
          "value": "github.com/grafana/grafana",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.9.2-0.20260127141016-e702db6096e0",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "low",
    "structured": {
      "id": "GHSA-p5x9-j974-rpfp",
      "aliases": [
        "BIT-grafana-2026-21727",
        "CVE-2026-21727",
        "GHSA-p5x9-j974-rpfp",
        "GO-2026-6664"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "SEMVER",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.9.2-0.20260127141016-e702db6096e0"
                }
              ]
            }
          ],
          "package": {
            "name": "github.com/grafana/grafana",
            "purl": "pkg:golang/github.com/grafana/grafana",
            "ecosystem": "Go"
          },
          "database_specific": {
            "source": "https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-p5x9-j974-rpfp/GHSA-p5x9-j974-rpfp.json"
          }
        }
      ],
      "modified": "2026-10-07T17:55:45.029966249Z",
      "provider": "osv",
      "references": [
        "https://nvd.nist.gov/vuln/detail/CVE-2026-21727",
        "https://github.com/grafana/grafana/commit/2b2847625b8a77ba47128ccb5ecbcd72542cb9bc",
        "https://github.com/grafana/grafana/commit/2cf0dd6fde3f5a2b92864e2376ae5378c7df45e2",
        "https://github.com/grafana/grafana/commit/4010ee30bb441bc399a1f37bdc8ab55ec909f3b7",
        "https://github.com/grafana/grafana/commit/8e7ea333991d913298bd68d4787da9c6977a0a8c",
        "https://github.com/grafana/grafana/commit/a9a98fc4327182d1bdb9a74b5c2938d5c127e764",
        "https://github.com/grafana/grafana/commit/e702db6096e0509ff2825f732697f077e9e6289f",
        "https://github.com/grafana/grafana",
        "https://grafana.com/security/security-advisories/cve-2026-21727"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-732"
        ],
        "severity": "LOW",
        "github_reviewed": true,
        "nvd_published_at": "2026-04-15T20:16:34Z",
        "github_reviewed_at": "2026-10-05T22:33:25Z"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-21727",
        "evidence": "/aliases"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/database_specific/severity"
  },
  "source_id": "core-osv",
  "document_id": 97126,
  "published_at": "2026-04-15T21:30:18+00:00"
}