Security advisory

{
  "id": "65dec720924e27709edefac8ca0a27692ba4f0c61dda58ec118c00960e06c78e",
  "url": "https://osv.dev/vulnerability/CVE-2023-47163",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2023-47163",
    "summary": "Remarshal prior to v0.17.1 expands YAML alias nodes unlimitedly, hence Remarshal is vulnerable to Billion Laughs Attack. Processing untrusted YAML files may cause a denial-of-service (DoS) condition.",
    "evidence": "osv:CVE-2023-47163",
    "products": [],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2023-47163",
      "aliases": [
        "CVE-2023-47163",
        "GHSA-gw7g-qr8w-3448",
        "PYSEC-2023-236"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/remarshal-project/remarshal",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "33f43f81206ecc36d90a14e4632fae5958ded712"
                },
                {
                  "fixed": "fd6ac799a02f533c3fc243b49cdd6d21aa7ee494"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:remarshal_project:remarshal:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "0.17.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "fd6ac799a02f533c3fc243b49cdd6d21aa7ee494"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "33f43f81206ecc36d90a14e4632fae5958ded712"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v0.17.1"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v0.17.0",
            "v0.16.1",
            "v0.16.0",
            "v0.15.1",
            "v0.15.0",
            "v0.14.0",
            "v0.13.0",
            "v0.12.0",
            "v0.11.2",
            "v0.11.1",
            "v0.11.0",
            "v0.10.0",
            "v0.9.2",
            "v0.9.1",
            "v0.9.0",
            "v0.8.0",
            "v0.7.0",
            "v0.6.0",
            "v0.5.1",
            "v0.5.0",
            "v0.4.0",
            "v0.3.0",
            "v0.2.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-47163.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:24.127600034Z",
      "provider": "osv",
      "references": [
        "https://github.com/remarshal-project/remarshal/releases/tag/v0.17.1",
        "https://jvn.jp/en/jp/JVN86156389/",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/47xxx/CVE-2023-47163.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-47163",
        "https://github.com/remarshal-project/remarshal/commit/fd6ac799a02f533c3fc243b49cdd6d21aa7ee494"
      ],
      "provider_metadata": {
        "cna_assigner": "jpcert",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/47xxx/CVE-2023-47163.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-47163",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 490455,
  "published_at": "2023-11-13T02:26:42.658+00:00"
}