jsPDF has a Shared State Race Condition in addJS Plugin

{
  "id": "1443021fe9a23fa22f81bfc5aeff0559dcc4dc4e5cad269773147a48837cca4d",
  "url": "https://osv.dev/vulnerability/CVE-2026-24040",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "jsPDF has a Shared State Race Condition in addJS Plugin",
    "summary": "jsPDF is a library to generate PDFs in JavaScript. Prior to 4.1.0, the addJS method in the jspdf Node.js build utilizes a shared module-scoped variable (text) to store JavaScript content. When used in a concurrent environment (e.g., a Node.js web server), this variable is shared across all requests. If multiple requests generate PDFs simultaneously, the JavaScript content intended for one user may be overwritten by a subsequent request before the document is generated. This results in Cross-User Data Leakage, where the PDF generated for User A contains the JavaScript payload (and any embedded sensitive data) intended for User B. Typically, this only affects server-side environments, although the same race conditions might occur if jsPDF runs client-side. The vulnerability has been fixed in jsPDF@4.1.0.",
    "evidence": "osv:CVE-2026-24040",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-24040",
      "aliases": [
        "CVE-2026-24040",
        "GHSA-cjw8-79x6-5cj4"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/parallax/jspdf",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "02273814bf0222eda02944f9a14128811f3b5a33"
                },
                {
                  "fixed": "2863e5c26afef211a545e8c174ab4d5fce3b8c0e"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:parall:jspdf:*:*:*:*:*:node.js:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "4.1.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "2863e5c26afef211a545e8c174ab4d5fce3b8c0e"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "02273814bf0222eda02944f9a14128811f3b5a33"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v4.1.0"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v4.0.0",
            "v3.0.4",
            "v3.0.3",
            "v3.0.2",
            "v3.0.1",
            "v3.0.0",
            "v2.5.2",
            "v2.5.1",
            "v2.5.0",
            "v2.4.0",
            "v2.3.1",
            "v2.3.0",
            "v2.2.0",
            "v2.1.1",
            "v2,1,0",
            "v2.0.0",
            "v1.5.3",
            "v1.5.2",
            "v1.5.1",
            "v1.5.0",
            "v1.4.1",
            "v1.4.0",
            "v.1.4.0",
            "v1.3.5",
            "1.3.4",
            "v1.3.4",
            "v1.3.3",
            "v1.3.0",
            "v1.2.61",
            "v1.2.60",
            "1.1.135",
            "v1.0.272",
            "v1.0.178",
            "v1.0.150",
            "v1.0.138",
            "v1.0.119",
            "v1.0.116",
            "v1.0.115",
            "v1.0.106",
            "v0.9.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-24040.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:45.817693989Z",
      "provider": "osv",
      "references": [
        "https://github.com/parallax/jsPDF/releases/tag/v4.1.0",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/24xxx/CVE-2026-24040.json",
        "https://github.com/parallax/jsPDF/security/advisories/GHSA-cjw8-79x6-5cj4",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-24040",
        "https://github.com/parallax/jsPDF/commit/2863e5c26afef211a545e8c174ab4d5fce3b8c0e"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-362"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/24xxx/CVE-2026-24040.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-24040",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 513939,
  "published_at": "2026-02-02T20:38:24.732+00:00"
}