CVE-2023-46250

{
  "id": "CVE-2023-46250",
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              "exploitation": "none"
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              "automatable": "no"
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            {
              "technicalImpact": "partial"
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          "version": "2.0.3",
          "timestamp": "2024-09-05T18:52:16.129180Z"
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        "type": "Secondary",
        "source": "security-advisories@github.com",
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          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.1,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
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        "impactScore": 3.6,
        "exploitabilityScore": 1.4
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  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "py-pdf",
          "product": "pypdf",
          "versions": [
            {
              "status": "affected",
              "version": ">= 3.7.0, < 3.17.0"
            }
          ]
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  "published": "2023-10-31T16:15:09.930",
  "references": [
    {
      "url": "https://github.com/py-pdf/pypdf/commit/9b23ac3c9619492570011d551d521690de9a3e2d",
      "tags": [
        "Patch"
      ],
      "source": "security-advisories@github.com"
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    {
      "url": "https://github.com/py-pdf/pypdf/pull/2264",
      "tags": [
        "Issue Tracking",
        "Patch"
      ],
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/py-pdf/pypdf/security/advisories/GHSA-wjcc-cq79-p63f",
      "tags": [
        "Vendor Advisory"
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    {
      "url": "https://github.com/py-pdf/pypdf/commit/9b23ac3c9619492570011d551d521690de9a3e2d",
      "tags": [
        "Patch"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "https://github.com/py-pdf/pypdf/pull/2264",
      "tags": [
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        "Patch"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  "vulnStatus": "Modified",
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      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-835"
        }
      ]
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "pypdf is a free and open-source pure-python PDF library. An attacker who uses a vulnerability present in versions 3.7.0 through 3.16.4 can craft a PDF which leads to an infinite loop. This infinite loop blocks the current process and can utilize a single core of the CPU by 100%. It does not affect memory usage. That is, for example, the case when the pypdf-user manipulates an incoming malicious PDF e.g. by merging it with another PDF or by adding annotations. The issue was fixed in version 3.17.0. As a workaround, apply the patch manually by modifying `pypdf/generic/_data_structures.py`."
    },
    {
      "lang": "es",
      "value": "pypdf es una librería de PDF pura de Python gratuita y de código abierto. Un atacante que utilice una vulnerabilidad presente en las versiones 3.7.0 a 3.16.4 puede crear un PDF que genere un bucle infinito. Este bucle infinito bloquea el proceso actual y puede utilizar un solo núcleo de la CPU al 100%. No afecta el uso de la memoria. Ese es, por ejemplo, el caso cuando el usuario de pypdf manipula un PDF malicioso entrante, por ejemplo fusionándolo con otro PDF o agregando anotaciones. El problema se solucionó en la versión 3.17.0. Como workaround, aplique el parche manualmente modificando `pypdf/generic/_data_structures.py`."
    }
  ],
  "lastModified": "2026-06-17T06:30:31.167",
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