{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:pypdf_project:pypdf:*:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "6.10.1"
              }
            ],
            "source": [
              "CPE_RANGE",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "b49e7eb45422c19b68ac59c51b7699409e74d44e"
            },
            {
              "fixed": "62338e9d36419cf193ccec7331784f45df1d70b3"
            }
          ],
          "repo": "https://github.com/py-pdf/pypdf",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-jj6c-8h6c-hppx"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-834"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41168.json"
  },
  "details": "pypdf is a free and open-source pure-python PDF library. An attacker who uses a vulnerability present in versions prior to 6.10.1 can craft a PDF which leads to long runtimes. This requires cross-reference streams with wrong large `/Size` values or object streams with wrong large `/N` values. This has been fixed in pypdf 6.10.1. As a workaround, one may apply the changes from the patch manually.",
  "id": "CVE-2026-41168",
  "modified": "2026-08-12T03:51:10.148917653Z",
  "published": "2026-04-22T20:49:10.401Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/py-pdf/pypdf/releases/tag/6.10.1"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41168.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/py-pdf/pypdf/security/advisories/GHSA-jj6c-8h6c-hppx"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-41168"
    },
    {
      "type": "FIX",
      "url": "https://github.com/py-pdf/pypdf/commit/62338e9d36419cf193ccec7331784f45df1d70b3"
    },
    {
      "type": "FIX",
      "url": "https://github.com/py-pdf/pypdf/pull/3733"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "pypdf has possible long runtimes for wrong size values in cross-reference and object streams"
}