Deno 2.7.0 through 2.9.7 Command Injection via node:child_process

{
  "id": "e3a9b7492341ebab4da405375cc49c033820e9b20a69e54b1d7f84779625137b",
  "url": "https://osv.dev/vulnerability/CVE-2026-103473",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Deno 2.7.0 through 2.9.7 Command Injection via node:child_process",
    "summary": "Deno versions 2.7.0 through 2.9.7 on Windows contain a command injection vulnerability in node:child_process where shell arguments are escaped for the wrong shell type. Attackers can inject OS commands by passing untrusted arguments with the shell option, allowing arbitrary command execution with Deno process privileges.",
    "evidence": "osv:CVE-2026-103473",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2026-103473",
      "aliases": [
        "CVE-2026-103473"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/denoland/deno",
              "type": "GIT",
              "events": [
                {
                  "introduced": "fb4db333c37ec1242a6f80738510d214018fea53"
                },
                {
                  "last_affected": "0c071246a412575e07423263404a5d13e7ed6aa2"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "2.7.0"
                      },
                      {
                        "last_affected": "2.9.7"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "introduced": "2.7.0"
                      },
                      {
                        "last_affected": "2.9.7"
                      }
                    ],
                    "source": "DESCRIPTION"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v2.9.7",
            "v2.9.6",
            "v2.9.5",
            "v2.9.4",
            "v2.9.3",
            "v2.9.2",
            "v2.9.1",
            "v2.9.0",
            "v2.8.3",
            "v2.8.2",
            "v2.8.1",
            "v2.8.0",
            "v2.7.14",
            "v2.7.13",
            "v2.7.12",
            "v2.7.11",
            "v2.7.10",
            "v2.7.9",
            "v2.7.8",
            "v2.7.7",
            "v2.7.6",
            "v2.7.5",
            "v2.7.4",
            "v2.7.3",
            "v2.7.2",
            "v2.7.1",
            "v2.7.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-103473.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:51.004254647Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/103xxx/CVE-2026-103473.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-103473",
        "https://www.vulncheck.com/advisories/deno-2.7.0-through-2.9.7-command-injection-via-node-child-process",
        "https://github.com/denoland/deno/pull/36772",
        "https://github.com/denoland/deno",
        "https://github.com/denoland/deno/blob/0c071246a412575e07423263404a5d13e7ed6aa2/ext/node/polyfills/internal/child_process.ts#L1339",
        "https://github.com/denoland/deno/blob/0c071246a412575e07423263404a5d13e7ed6aa2/ext/node/polyfills/internal/child_process.ts#L1499"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-78"
        ],
        "cna_assigner": "VulnCheck",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/103xxx/CVE-2026-103473.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-103473",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 519315,
  "published_at": "2026-09-30T17:22:40.337+00:00"
}