Ghost has Staff Token permission bypass

{
  "id": "93d5a0a31d676fd1d95b164c3372dbe6c6095729ceddfc71da1f6b9041bab9a7",
  "url": "https://osv.dev/vulnerability/CVE-2026-22595",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Ghost has Staff Token permission bypass",
    "summary": "Ghost is a Node.js content management system. In versions 5.121.0 through 5.130.5 and 6.0.0 through 6.10.3, a vulnerability in Ghost's handling of Staff Token authentication allowed certain endpoints to be accessed that were only intended to be accessible via Staff Session authentication. External systems that have been authenticated via Staff Tokens for Admin/Owner-role users would have had access to these endpoints. This issue has been patched in versions 5.130.6 and 6.11.0.",
    "evidence": "osv:CVE-2026-22595",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-22595",
      "aliases": [
        "BIT-ghost-2026-22595",
        "CVE-2026-22595",
        "GHSA-9xg7-mwmp-xmjx"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/tryghost/ghost",
              "type": "GIT",
              "events": [
                {
                  "introduced": "9a3d66f39e6555123bbc17d8616aa1ce4ec93ca9"
                },
                {
                  "fixed": "a07c753c8a08c38d264b429b2a19873b152c097a"
                },
                {
                  "introduced": "5b8c97dcb46ae3d552a2f05531723f14c8f806a7"
                },
                {
                  "fixed": "67e137d8b0dd70cd5f486bfeea5d1643cee06104"
                },
                {
                  "fixed": "9513d2a35c21067127ce8192443d8919ddcefcc8"
                },
                {
                  "fixed": "c3017f81a5387b253a7b8c1ba1959d430ee536a3"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:ghost:ghost:*:*:*:*:*:node.js:*:*",
                    "range": [
                      {
                        "introduced": "5.121.0"
                      },
                      {
                        "fixed": "5.130.6"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:ghost:ghost:*:*:*:*:*:node.js:*:*",
                    "range": [
                      {
                        "introduced": "6.0.0"
                      },
                      {
                        "fixed": "6.11.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "9513d2a35c21067127ce8192443d8919ddcefcc8"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "c3017f81a5387b253a7b8c1ba1959d430ee536a3"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v5.130.5",
            "v6.10.3",
            "v6.10.0",
            "v6.9.3",
            "v6.9.2",
            "v6.9.0",
            "v6.8.1",
            "v6.8.0",
            "v6.7.0",
            "v6.6.0",
            "v6.5.3",
            "v6.5.2",
            "v6.5.0",
            "v6.4.0",
            "v6.3.1",
            "v6.2.0",
            "v6.3.0",
            "v6.1.0",
            "v6.0.10",
            "v5.130.4",
            "v6.0.8",
            "v6.0.7",
            "v6.0.6",
            "v6.0.5",
            "v6.0.4",
            "v6.0.3",
            "v5.130.3",
            "v6.0.1",
            "v6.0.0",
            "v5.130.1",
            "v5.130.0",
            "v5.129.2",
            "v5.129.1",
            "v5.129.0",
            "v5.128.0",
            "v5.127.1",
            "v5.127.0",
            "v5.126.0",
            "v5.125.1",
            "v5.122.0",
            "v5.121.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-22595.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:53.146279555Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/22xxx/CVE-2026-22595.json",
        "https://github.com/TryGhost/Ghost/security/advisories/GHSA-9xg7-mwmp-xmjx",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-22595",
        "https://github.com/TryGhost/Ghost/commit/9513d2a35c21067127ce8192443d8919ddcefcc8",
        "https://github.com/TryGhost/Ghost/commit/c3017f81a5387b253a7b8c1ba1959d430ee536a3"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-863"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/22xxx/CVE-2026-22595.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-22595",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 522084,
  "published_at": "2026-01-10T02:57:08.131+00:00"
}