{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "0"
              },
              {
                "fixed": "6.9.2"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "da867f4961e4ac5ac9d751cba3131c5a1a8777f3"
            }
          ],
          "repo": "https://github.com/py-pdf/pypdf",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-87mj-5ggw-8qc3"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-835"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33699.json"
  },
  "details": "pypdf is a free and open-source pure-python PDF library. Versions prior to 6.9.2 have a vulnerability in which an attacker can craft a PDF which leads to an infinite loop. This requires reading a file in non-strict mode. This has been fixed in pypdf 6.9.2. If users cannot upgrade yet, consider applying the changes from the patch manually.",
  "id": "CVE-2026-33699",
  "modified": "2026-04-01T23:09:12.322047220Z",
  "published": "2026-03-26T23:58:42.776Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33699.json"
    },
    {
      "type": "FIX",
      "url": "https://github.com/py-pdf/pypdf/pull/3693"
    },
    {
      "type": "WEB",
      "url": "https://github.com/py-pdf/pypdf/releases/tag/6.9.2"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/py-pdf/pypdf/security/advisories/GHSA-87mj-5ggw-8qc3"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-33699"
    }
  ],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U",
      "type": "CVSS_V4"
    }
  ],
  "summary": "pypdf: Possible infinite loop during recovery attempts in DictionaryObject.read_from_stream"
}