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CVE-2026-44708

Estado: AnalizadaMedia (6.1)—

Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.2.1, the mistune math plugin renders inline math ($...$) and block math ($$...$$) by concatenating the raw user-supplied content directly into the HTML output without any HTML escaping. This occurs even when the parser is explicitly created with escape=True, which is supposed to guarantee that all user-controlled text is sanitised before reaching the DOM. This vulnerability is fixed in 3.2.1.

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)

Mistune Project — Mistune

CWE

Referencias

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  "id": "CVE-2026-44708",
  "cveTags": [],
  "metrics": {
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          "id": "CVE-2026-44708",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
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            },
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              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-05-27T14:13:33.614272Z"
        }
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    "cvssMetricV31": [
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          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
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  "published": "2026-05-26T21:16:38.527",
  "references": [
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      "url": "https://github.com/lepture/mistune/releases/tag/v3.2.1",
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    },
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      "lang": "es",
      "value": "Mistune es un parser de Markdown en Python con renderizadores y plugins. Antes de la 3.2.1, el plugin de matemáticas de mistune renderiza matemáticas en línea ($...$) y matemáticas en bloque ($$...$$) concatenando el contenido bruto proporcionado por el usuario directamente en la salida HTML sin ningún escape HTML. Esto ocurre incluso cuando el parser se crea explícitamente con escape=True, lo cual se supone que garantiza que todo el texto controlado por el usuario se sanitiza antes de llegar al DOM. Esta vulnerabilidad se corrige en la 3.2.1."
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  ],
  "lastModified": "2026-07-24T11:10:00.170",
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