Security advisory

{
  "id": "48dba157a5c34aaf6d6b7f74a078abdab8e1eeb1314382dd28023d2aaa7f1600",
  "url": "https://osv.dev/vulnerability/CVE-2021-23413",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-23413",
    "summary": "This affects the package jszip before 3.7.0. Crafting a new zip file with filenames set to Object prototype values (e.g __proto__, toString, etc) results in a returned object with a modified prototype instance.",
    "evidence": "osv:CVE-2021-23413",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2021-23413",
      "aliases": [
        "CVE-2021-23413",
        "GHSA-jg8v-48h5-wgxg"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/stuk/jszip",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "e5b3f0ddaa8182cd6ea253e97f678b9f36d0d8ac"
                },
                {
                  "fixed": "22357494f424178cb416cdb7d93b26dd4f824b36"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:jszip_project:jszip:*:*:*:*:*:node.js:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "3.7.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "22357494f424178cb416cdb7d93b26dd4f824b36"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v3.6.0",
            "v3.5.0",
            "v3.4.0",
            "v3.3.0",
            "v3.2.2",
            "v3.2.1",
            "v3.2.0",
            "v2.5.0",
            "v1.0.1",
            "v1.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-23413.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:32.666878736Z",
      "provider": "osv",
      "references": [
        "https://github.com/Stuk/jszip/blob/master/lib/object.js%23L88",
        "https://github.com/Stuk/jszip/pull/766",
        "https://github.com/Stuk/jszip/commit/22357494f424178cb416cdb7d93b26dd4f824b36",
        "https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARS-1251499",
        "https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1251498",
        "https://snyk.io/vuln/SNYK-JS-JSZIP-1251497"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-23413",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 385539,
  "published_at": "2021-07-25T13:15:07.39+00:00"
}