TYPO3 CMS - Missing Authorization in lowlevel commands

{
  "id": "d2b53ed90622a730332e1e0e3aeb438647fa8c9a203aa19a0004934b06fdddda",
  "url": "https://osv.dev/vulnerability/CVE-2026-85400",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "TYPO3 CMS - Missing Authorization in lowlevel commands",
    "summary": "Backend administrators without system maintainer privileges were able to schedule any of the configuration:read, configuration:set, and configuration:show commands. This allowed them to modify arbitrary system configuration, which is normally limited to system maintainers. As a consequence, this allowed them, for example, to gain system maintainer privileges or cause a denial of service. Exploiting this vulnerability requires an administrator-level backend user account. This issue affects TYPO3 CMS versions 14.2.0-14.3.6.",
    "evidence": "osv:CVE-2026-85400",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-85400",
      "aliases": [
        "CVE-2026-85400"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/typo3/typo3",
              "type": "GIT",
              "events": [
                {
                  "introduced": "cfda1147fba7bb5bbe30cf5aedd3277a0a329b3e"
                },
                {
                  "fixed": "07f4dc8267d1824a3021c00cd36c5ad8ee7f84a1"
                },
                {
                  "fixed": "b8abe36978c63a0625aee70df078895216e7ee27"
                },
                {
                  "fixed": "e15da7ba0218532240578b471152f76c13cb4154"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "14.2.0"
                      },
                      {
                        "fixed": "14.3.7"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "fixed": "b8abe36978c63a0625aee70df078895216e7ee27"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "e15da7ba0218532240578b471152f76c13cb4154"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v14.3.6",
            "v14.3.5",
            "v14.3.4",
            "v14.3.3",
            "v14.3.2",
            "v14.3.1",
            "v14.3.0",
            "v14.2.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-85400.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:25.502616579Z",
      "provider": "osv",
      "references": [
        "https://packagist.org",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/85xxx/CVE-2026-85400.json",
        "https://news.typo3.com/security/advisory/typo3-core-sa-2026-023",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-85400",
        "https://github.com/TYPO3/typo3/commit/b8abe36978c63a0625aee70df078895216e7ee27",
        "https://github.com/TYPO3/typo3/commit/e15da7ba0218532240578b471152f76c13cb4154",
        "https://github.com/TYPO3/typo3"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-266",
          "CWE-862"
        ],
        "cna_assigner": "TYPO3",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/85xxx/CVE-2026-85400.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-85400",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 492025,
  "published_at": "2026-09-08T09:18:40.983+00:00"
}