Remote Code execution in SnakeYAML

{
  "id": "c901325352deef4b92cc24ddee188a54a802b125b8673a89c6c2ac5590fcfd2f",
  "url": "https://osv.dev/vulnerability/CVE-2022-1471",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Remote Code execution in SnakeYAML",
    "summary": "SnakeYaml's Constructor() class does not restrict types which can be instantiated during deserialization. Deserializing yaml content provided by an attacker can lead to remote code execution. We recommend using SnakeYaml's SafeConsturctor when parsing untrusted content to restrict deserialization. We recommend upgrading to version 2.0 and beyond.",
    "evidence": "osv:CVE-2022-1471",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2022-1471",
      "aliases": [
        "CVE-2022-1471",
        "GHSA-mjmj-j48q-9wg2"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://bitbucket.org/snakeyaml/snakeyaml",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "59ddbb3304bb8e22e2004d74cddaf9ed4086632e"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:snakeyaml_project:snakeyaml:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "snakeyaml-1.33",
            "snakeyaml-1.32",
            "snakeyaml-1.30",
            "snakeyaml-1.27",
            "snakeyaml-1.26",
            "snakeyaml-1.25",
            "snakeyaml-1.24",
            "snakeyaml-1.23",
            "snakeyaml-1.22",
            "snakeyaml-1.21",
            "snakeyaml-1.20",
            "snakeyaml-1.19",
            "v1.18",
            "v1.17",
            "v1.16",
            "v1.15",
            "v1.13",
            "v1.12",
            "v1.11",
            "v1.10",
            "v1.9",
            "v1.8",
            "v1.7",
            "v1.7rc1",
            "v1.6",
            "1.6rc2",
            "v1.6rc1",
            "v1.5",
            "v1.5rc1",
            "v1.4rc1",
            "v1.3",
            "v1.2",
            "v1.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-1471.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:46.039435535Z",
      "provider": "osv",
      "references": [
        "https://bitbucket.org/snakeyaml/snakeyaml/issues/561/cve-2022-1471-vulnerability-in#comment-64581479",
        "https://confluence.atlassian.com/security/cve-2022-1471-snakeyaml-library-rce-vulnerability-in-multiple-products-1296171009.html",
        "https://groups.google.com/g/kubernetes-security-announce/c/mwrakFaEdnc",
        "https://infosecwriteups.com/%EF%B8%8F-inside-the-160-comment-fight-to-fix-snakeyamls-rce-default-1a20c5ca4d4c",
        "https://www.github.com/mbechler/marshalsec/blob/master/marshalsec.pdf?raw=true",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/1xxx/CVE-2022-1471.json",
        "https://github.com/google/security-research/security/advisories/GHSA-mjmj-j48q-9wg2",
        "https://nvd.nist.gov/vuln/detail/CVE-2022-1471",
        "https://security.netapp.com/advisory/ntap-20230818-0015/",
        "https://security.netapp.com/advisory/ntap-20240621-0006/",
        "https://github.com/mbechler/marshalsec"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-20"
        ],
        "cna_assigner": "Google",
        "unresolved_ranges": [
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "last_affected": "2.0"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StandardRange"
              }
            ]
          }
        ],
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/1xxx/CVE-2022-1471.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2022-1471",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 514321,
  "published_at": "2022-12-01T10:47:07.203+00:00"
}