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CVE-2023-22483

Estado: ModificadaAlta (7.5)—

cmark-gfm is GitHub's fork of cmark, a CommonMark parsing and rendering library and program in C. Versions prior to 0.29.0.gfm.7 are subject to several polynomial time complexity issues in cmark-gfm that may lead to unbounded resource exhaustion and subsequent denial of service. Various commands, when piped to cmark-gfm with large values, cause the running time to increase quadratically. These vulnerabilities have been patched in version 0.29.0.gfm.7.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Github — Cmark-gfm

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2023-22483",
  "cveTags": [],
  "metrics": {
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        "ssvcData": {
          "id": "CVE-2023-22483",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-03-10T21:01:33.176698Z"
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    "cvssMetricV31": [
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          "baseSeverity": "LOW",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "LOW",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
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        "impactScore": 1.4,
        "exploitabilityScore": 2.1
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  "published": "2023-01-23T23:15:10.307",
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      "url": "https://github.com/github/cmark-gfm/security/advisories/GHSA-29g3-96g3-jg6c",
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        "Third Party Advisory"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  "vulnStatus": "Modified",
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      "description": [
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          "value": "CWE-400"
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    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
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          "lang": "en",
          "value": "CWE-407"
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "cmark-gfm is GitHub's fork of cmark, a CommonMark parsing and rendering library and program in C. Versions prior to 0.29.0.gfm.7 are subject to several polynomial time complexity issues in cmark-gfm that may lead to unbounded resource exhaustion and subsequent denial of service. Various commands, when piped to cmark-gfm with large values, cause the running time to increase quadratically. These vulnerabilities have been patched in version 0.29.0.gfm.7.\n"
    },
    {
      "lang": "es",
      "value": "cmark-gfm es la bifurcación de GitHub de cmark, una librería y programa de análisis y representación de CommonMark en C. Las versiones anteriores a 0.29.0.gfm.7 están sujetas a varios problemas de complejidad de tiempo polinomial en cmark-gfm que pueden provocar un agotamiento ilimitado de los recursos y posterior denegación del servicio. Varios comandos, cuando se canalizan a cmak-gfm con valores grandes, hacen que el tiempo de ejecución aumente cuadráticamente. Estas vulnerabilidades se han solucionado en la versión 0.29.0.gfm.7."
    }
  ],
  "lastModified": "2026-06-17T05:35:33.493",
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