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Critical

Security advisory

Type: advisorySources: OSVCVE: CVE-2021-23442

This affects all versions of package @cookiex/deep. The global proto object can be polluted using the __proto__ object.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2021-23442
Confirmed fixed CVEs
Not specified
Updated in this feed
31 Oct 2026, 11:15 UTC · Revision 1

Source evidence

CVE-2021-23442

core-osv · Original source

Published 17 Sept 2021, 10:15 UTC

This affects all versions of package @cookiex/deep. The global proto object can be polluted using the __proto__ object.

osv:CVE-2021-23442
Complete source record
{
  "id": "28862993bf1992a4b770137d0525d43187e7c63573428da554ea60e2c55c218b",
  "url": "https://osv.dev/vulnerability/CVE-2021-23442",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-23442",
    "summary": "This affects all versions of package @cookiex/deep. The global proto object can be polluted using the __proto__ object.",
    "evidence": "osv:CVE-2021-23442",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2021-23442",
      "aliases": [
        "CVE-2021-23442",
        "GHSA-92v9-xh2q-fq9f",
        "SNYK-JS-COOKIEXDEEP-1582793"
      ],
      "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/tony-tsx/cookiex-deep",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "b5bea2b7f34a5fa9abb4446cbd038ecdbcd09c88"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "fixed": "b5bea2b7f34a5fa9abb4446cbd038ecdbcd09c88"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-23442.json"
          }
        }
      ],
      "modified": "2026-10-20T10:53:37.858316186Z",
      "provider": "osv",
      "references": [
        "https://github.com/tony-tsx/cookiex-deep/commit/b5bea2b7f34a5fa9abb4446cbd038ecdbcd09c88",
        "https://github.com/tony-tsx/cookiex-deep/issues/1",
        "https://snyk.io/vuln/SNYK-JS-COOKIEXDEEP-1582793"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:a:cookiex-deep_project:cookiex-deep:*:*:*:*:*:node.js:*:*"
            ],
            "vendor_product": "cookiex-deep_project:cookiex-deep",
            "extracted_events": [
              {
                "range": [
                  {
                    "fixed": "0.0.6"
                  }
                ],
                "source": "CPE_RANGE"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2021-23442",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 384448,
  "published_at": "2021-09-17T10:15:07.437+00:00"
}