Vulnerabilities in pkg:pypi/pypdf

{
  "schema_version" : "1.4.0",
  "id" : "GHSA-v247-6f48-mgcj",
  "modified" : "2026-10-01T15:07:35Z",
  "published" : "2026-10-01T15:07:35Z",
  "aliases" : [ "CVE-2026-102999" ],
  "summary" : "pypdf: Possible long runtimes with large amount of embedded files",
  "details" : "### Impact\n\nAn attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires accessing the embedded files through the dictionary-based API.\n\n### Patches\n\nThis has been fixed in [pypdf==6.19.0](https://github.com/py-pdf/pypdf/releases/tag/6.19.0).\n\n### Workarounds\n\nIf you cannot upgrade yet, consider applying the changes from PR [#4081](https://github.com/py-pdf/pypdf/pull/4081).",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "pypdf"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "6.19.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/py-pdf/pypdf/security/advisories/GHSA-v247-6f48-mgcj"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-102999"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/py-pdf/pypdf/pull/4081"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/py-pdf/pypdf/commit/6b10556d13609a68f9ed18bb29fdd8bba88eb2c3"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/py-pdf/pypdf"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/py-pdf/pypdf/releases/tag/6.19.0"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-400", "CWE-407" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-10-01T15:07:35Z",
    "nvd_published_at" : "2026-09-30T21:17:07Z"
  }
}