{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "pdfjs-dist"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.6.83"
            },
            {
              "fixed": "6.2.108"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-16633"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-08-06T21:12:27Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "### Impact\n\nIf PDF.js is used to load a malicious PDF, and PDF.js is configured with `enableScripting` set to true (which is the default value) and no CSP for disallowing script-src, unrestricted attacker-controlled JavaScript will be executed in the context of the hosting domain.\n\n### Patches\n\n### Workarounds\nSet `enableScripting` to `false` or set a CSP.",
  "id": "GHSA-hq66-cqwq-w95j",
  "modified": "2026-08-06T21:12:27Z",
  "published": "2026-08-06T21:12:27Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/mozilla/pdf.js/security/advisories/GHSA-hq66-cqwq-w95j"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2055885"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/mozilla/pdf.js"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "PDF.js: Arbitrary JavaScript execution upon opening a malicious PDF "
}