Authenticated RCE via render-components Entry Type overrides

{
  "id": "dc8f48119fdd409435a5c8fd9c5fdca81507e4f0c0bd7acb3c148e451c18c2ac",
  "url": "https://osv.dev/vulnerability/CVE-2026-105985",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Authenticated RCE via render-components Entry Type overrides",
    "summary": "Craft CMS 5.10.13.2 contains an authenticated remote code execution vulnerability in the Control Panel action app/render-components. Any authenticated user with basic Control Panel access can submit request-controlled component classes and property overrides. By first overriding an EntryType object’s uiLabelFormat and then rendering an Entry that resolves the same request-cached entry type, an attacker can cause arbitrary Twig supplied in the request to be evaluated by renderObjectTemplate(). This render path is not sandboxed. A Twig string callable can therefore reach PHP functions such as system(), resulting in operating-system command execution with the privileges of the PHP/web-server process. The issue was reproduced with an active non-admin Craft Team user with no optional permissions enabled. No access to entry-editing, Settings, utility, user-management, project-config, filesystem, Kubernetes, or environment variables was required.",
    "evidence": "osv:CVE-2026-105985",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-105985",
      "aliases": [
        "CVE-2026-105985",
        "GHSA-g48f-wc2q-4rrv"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/craftcms/cms",
              "type": "GIT",
              "events": [
                {
                  "introduced": "f6a8fb685d44e387435825e3a96809eeda4973a6"
                },
                {
                  "fixed": "2255717bfd5cc502751601aa68bf72eea035cd47"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "5.0.0"
                      },
                      {
                        "fixed": "5.11.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "fixed": "2255717bfd5cc502751601aa68bf72eea035cd47"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "5.11.0"
                  }
                ]
              }
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-105985.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:43.029797261Z",
      "provider": "osv",
      "references": [
        "https://packagist.org",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/105xxx/CVE-2026-105985.json",
        "https://github.com/craftcms/cms/releases/tag/5.11.0",
        "https://github.com/craftcms/cms/security/advisories/GHSA-g48f-wc2q-4rrv",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-105985",
        "https://www.hckrt.com/hacktivity/HCKRT-PVWH7W",
        "https://github.com/craftcms/cms"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-1336"
        ],
        "cna_assigner": "Hackrate",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/105xxx/CVE-2026-105985.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-105985",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 510885,
  "published_at": "2026-10-06T10:23:25.037+00:00"
}