Security advisory

{
  "id": "537870ab3f9a1208a71657e4a158945fa58f2d979af53f11297fba2c8240cc92",
  "url": "https://osv.dev/vulnerability/CVE-2021-42139",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-42139",
    "summary": "Deno Standard Modules before 0.107.0 allows Code Injection via an untrusted YAML file in certain configurations.",
    "evidence": "osv:CVE-2021-42139",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2021-42139",
      "aliases": [
        "CVE-2021-42139"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/denoland/std",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "197bb8c295034be7d00842623b417c7a7bdce711"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:deno:deno_standard_modules:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "0.107.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "197bb8c295034be7d00842623b417c7a7bdce711"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "0.107.0"
                  }
                ]
              }
            }
          ],
          "versions": [
            "0.106.0",
            "0.105.0",
            "0.104.0",
            "0.103.0",
            "0.102.0",
            "0.101.0",
            "0.100.0",
            "0.99.0",
            "0.98.0",
            "0.97.0",
            "0.96.0",
            "0.95.0",
            "0.94.0",
            "0.93.0",
            "0.92.0",
            "0.91.0",
            "0.90.0",
            "0.89.0",
            "0.88.0",
            "0.87.0",
            "0.86.0",
            "0.85.0",
            "v0.20.0",
            "v0.19.0",
            "v0.18.0",
            "v0.17.0",
            "v0.16.0",
            "v0.15.0",
            "v0.12.0",
            "v0.11.0",
            "v0.10.0",
            "v0.9.0",
            "v0.8.0",
            "v0.7.0",
            "v0.6.0",
            "20190520",
            "20190516",
            "v0.5.0",
            "v0.4.0",
            "v0.3.10",
            "v0.3.8",
            "v0.3.6",
            "v0.3.5",
            "v0.3.4",
            "v0.3.3",
            "v0.3.2",
            "v0.3.1",
            "v0.3.0",
            "v0.2.11",
            "v0.2.10",
            "v0.2.9",
            "v0.2.8",
            "v0.2.7",
            "v0.2.6",
            "v0.2.5",
            "v0.2.4",
            "v0.2.3",
            "v0.2.2",
            "v0.2.1",
            "v0.2.0",
            "v0.1.12",
            "v0.1.11"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-42139.json"
          }
        }
      ],
      "modified": "2026-10-20T10:55:00.839534982Z",
      "provider": "osv",
      "references": [
        "https://github.com/denoland/deno_std/releases/tag/0.107.0",
        "https://vuln.ryotak.me/advisories/58",
        "https://github.com/denoland/deno_std/pull/1275"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-42139",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 386682,
  "published_at": "2021-10-11T05:15:06.827+00:00"
}