@aedart/support possibly vulnerable to prototype pollution in metadata record, when using meta decorator

{
  "id": "efd0308c39bb979bed381f2bd0c1e2eac99e2f6546c0c78978078f2d42c913c1",
  "url": "https://osv.dev/vulnerability/CVE-2023-30857",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "@aedart/support possibly vulnerable to prototype pollution in metadata record, when using meta decorator",
    "summary": "@aedart/support is the support package for Ion, a monorepo for JavaScript/TypeScript packages. Prior to version `0.6.1`, there is a possible prototype pollution issue for the `MetadataRecord`, when merged with a base class' metadata object, in `meta` decorator from the `@aedart/support` package. The likelihood of exploitation is questionable, given that a class's metadata can only be set or altered when the class is decorated via `meta()`. Furthermore, object(s) of sensitive nature would have to be stored as metadata, before this can lead to a security impact. The issue has been patched in version `0.6.1`.",
    "evidence": "osv:CVE-2023-30857",
    "products": [],
    "severity": "low",
    "structured": {
      "id": "CVE-2023-30857",
      "aliases": [
        "CVE-2023-30857",
        "GHSA-wwxh-74fx-33c6"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/aedart/ion",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "211e3ea120a782699ee3d8501a8ba7a283663cca"
                },
                {
                  "fixed": "c3e2ee08710d4164d796ecb66ed291335dae9291"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:aedart:ion:*:*:*:*:*:node.js:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "0.6.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "c3e2ee08710d4164d796ecb66ed291335dae9291"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "0.6.0",
            "0.5.0",
            "0.4.0",
            "0.3.1",
            "0.3.0",
            "0.2.0",
            "0.1.1",
            "0.1.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-30857.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:47.814728804Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/30xxx/CVE-2023-30857.json",
        "https://github.com/aedart/ion/security/advisories/GHSA-wwxh-74fx-33c6",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-30857",
        "https://github.com/aedart/ion/commit/c3e2ee08710d4164d796ecb66ed291335dae9291"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-1321"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/30xxx/CVE-2023-30857.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-30857",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 515944,
  "published_at": "2023-04-28T20:37:41.391+00:00"
}