FKIE_CVE-2024-28243

Vulnerability from fkie_nvd - Published: 2024-03-25 20:15 - Updated: 2025-12-05 19:00
Severity ?
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
KaTeX is a JavaScript library for TeX math rendering on the web. KaTeX users who render untrusted mathematical expressions could encounter malicious input using `\edef` that causes a near-infinite loop, despite setting `maxExpand` to avoid such loops. This can be used as an availability attack, where e.g. a client rendering another user's KaTeX input will be unable to use the site due to memory overflow, tying up the main thread, or stack overflow. Upgrade to KaTeX v0.16.10 to remove this vulnerability.
References
security-advisories@github.comhttps://github.com/KaTeX/KaTeX/commit/e88b4c357f978b1bca8edfe3297f0aa309bcbe34Patch
security-advisories@github.comhttps://github.com/KaTeX/KaTeX/security/advisories/GHSA-64fm-8hw2-v72wVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/KaTeX/KaTeX/commit/e88b4c357f978b1bca8edfe3297f0aa309bcbe34Patch
af854a3a-2127-422b-91ae-364da2661108https://github.com/KaTeX/KaTeX/security/advisories/GHSA-64fm-8hw2-v72wVendor Advisory
Impacted products
Vendor Product Version
katex katex *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:katex:katex:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "0864000C-A35D-4FF0-A654-14C938C6AEFF",
              "versionEndExcluding": "0.16.10",
              "versionStartIncluding": "0.1.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "KaTeX is a JavaScript library for TeX math rendering on the web. KaTeX users who render untrusted mathematical expressions could encounter malicious input using `\\edef` that causes a near-infinite loop, despite setting `maxExpand` to avoid such loops. This can be used as an availability attack, where e.g. a client rendering another user\u0027s KaTeX input will be unable to use the site due to memory overflow, tying up the main thread, or stack overflow. Upgrade to KaTeX v0.16.10 to remove this vulnerability."
    },
    {
      "lang": "es",
      "value": "KaTeX es una librer\u00eda de JavaScript para la representaci\u00f3n matem\u00e1tica de TeX en la web. Los usuarios de KaTeX que renderizan expresiones matem\u00e1ticas que no son de confianza podr\u00edan encontrar entradas maliciosas usando `\\edef` que causan un bucle casi infinito, a pesar de configurar `maxExpand` para evitar dichos bucles. Esto puede usarse como un ataque de disponibilidad, donde, por ejemplo, un cliente que procesa la entrada KaTeX de otro usuario no podr\u00e1 usar el sitio debido a un desbordamiento de memoria, atar el hilo principal o desbordamiento de la pila. Actualice a KaTeX v0.16.10 para eliminar esta vulnerabilidad."
    }
  ],
  "id": "CVE-2024-28243",
  "lastModified": "2025-12-05T19:00:09.807",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2024-03-25T20:15:07.950",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/KaTeX/KaTeX/commit/e88b4c357f978b1bca8edfe3297f0aa309bcbe34"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://github.com/KaTeX/KaTeX/security/advisories/GHSA-64fm-8hw2-v72w"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/KaTeX/KaTeX/commit/e88b4c357f978b1bca8edfe3297f0aa309bcbe34"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://github.com/KaTeX/KaTeX/security/advisories/GHSA-64fm-8hw2-v72w"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-674"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}


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