alexta69 MeTube CORS Policy main.py on_prepare cross-domain policy

{
  "id": "db5e5483799b548cd7f1efa1933ffaa99effe83e0ab679d57d7730ad637c378e",
  "url": "https://osv.dev/vulnerability/CVE-2026-7581",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "alexta69 MeTube CORS Policy main.py on_prepare cross-domain policy",
    "summary": "A security vulnerability has been detected in alexta69 MeTube up to 2026.04.09. This affects the function on_prepare of the file app/main.py of the component CORS Policy. The manipulation leads to permissive cross-domain policy with untrusted domains. The attack is possible to be carried out remotely. The exploit has been disclosed publicly and may be used. Upgrading to version 2026.04.10 is able to mitigate this issue. The identifier of the patch is 0072d3488ae5b8d922d3ee87458d829993742a32. It is recommended to upgrade the affected component.",
    "evidence": "osv:CVE-2026-7581",
    "products": [],
    "severity": "low",
    "structured": {
      "id": "CVE-2026-7581",
      "aliases": [
        "CVE-2026-7581"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/alexta69/metube",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0b3645aea1546f74fc6b26e7936e51863248079e"
                },
                {
                  "fixed": "0072d3488ae5b8d922d3ee87458d829993742a32"
                },
                {
                  "fixed": "388aeb180d48f09468aaa7b1f377f7fc247f73ef"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "2026.04.09"
                      },
                      {
                        "last_affected": "2026.04.09"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  },
                  {
                    "range": [
                      {
                        "fixed": "0072d3488ae5b8d922d3ee87458d829993742a32"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "388aeb180d48f09468aaa7b1f377f7fc247f73ef"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "2026.04.10"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2026.04.09"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-7581.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:43.202045746Z",
      "provider": "osv",
      "references": [
        "https://github.com/alexta69/metube/",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/7xxx/CVE-2026-7581.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-7581",
        "https://vuldb.com/submit/801529",
        "https://vuldb.com/vuln/360528",
        "https://vuldb.com/vuln/360528/cti",
        "https://github.com/alexta69/metube/commit/0072d3488ae5b8d922d3ee87458d829993742a32",
        "https://github.com/alexta69/metube/pull/949",
        "https://github.com/alexta69/metube/releases/tag/2026.04.10",
        "https://github.com/az10b/security-advisories/blob/main/cors_MeTube.md"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-346",
          "CWE-942"
        ],
        "cna_assigner": "VulDB",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/7xxx/CVE-2026-7581.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-7581",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 510938,
  "published_at": "2026-05-01T13:00:21.405+00:00"
}