FKIE_CVE-2025-32442

Vulnerability from fkie_nvd - Published: 2025-04-18 16:15 - Updated: 2025-08-22 21:15
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Summary
Fastify is a fast and low overhead web framework, for Node.js. In versions 5.0.0 to 5.3.0 as well as version 4.29.0, applications that specify different validation strategies for different content types have a possibility to bypass validation by providing a _slightly altered_ content type such as with different casing or altered whitespacing before `;`. This was patched in v5.3.1, but the initial patch did not cover all problems. This has been fully patched in v5.3.2 and v4.29.1. A workaround involves not specifying individual content types in the schema.
References
security-advisories@github.comhttps://github.com/fastify/fastify/commit/436da4c06dfbbb8c24adee3a64de0c51e4f47418Patch
security-advisories@github.comhttps://github.com/fastify/fastify/commit/f3d2bcb3963cd570a582e5d39aab01a9ae692fe4Patch
security-advisories@github.comhttps://github.com/fastify/fastify/security/advisories/GHSA-mg2h-6x62-wpwcExploit, Third Party Advisory
security-advisories@github.comhttps://hackerone.com/reports/3087928Permissions Required
Impacted products
Vendor Product Version
fastify fastify *
fastify fastify 4.29.0
To clipboard 

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              "matchCriteriaId": "8C3A81A7-33F6-491A-992C-FBD944597D42",
              "versionEndExcluding": "5.3.2",
              "versionStartIncluding": "5.0.0",
              "vulnerable": true
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      "value": "Fastify is a fast and low overhead web framework, for Node.js. In versions 5.0.0 to 5.3.0 as well as version 4.29.0, applications that specify different validation strategies for different content types have a possibility to bypass validation by providing a _slightly altered_ content type such as with different casing or altered whitespacing before `;`. This was patched in v5.3.1, but the initial patch did not cover all problems. This has been fully patched in v5.3.2 and v4.29.1. A workaround involves not specifying individual content types in the schema."
    },
    {
      "lang": "es",
      "value": "Fastify es un framework web r\u00e1pido y de bajo consumo para Node.js. En las versiones 5.0.0 a 5.3.0, las aplicaciones que especifican diferentes estrategias de validaci\u00f3n para distintos tipos de contenido pueden omitir la validaci\u00f3n proporcionando un tipo de contenido ligeramente modificado, como con may\u00fasculas y min\u00fasculas diferentes o con espacios antes de `;` modificados. Esto se solucion\u00f3 en la versi\u00f3n 5.3.1, pero la correcci\u00f3n inicial no solucion\u00f3 todos los problemas. Se ha corregido completamente en la versi\u00f3n 5.3.2. Un workaround consiste en no especificar tipos de contenido individuales en el esquema."
    }
  ],
  "id": "CVE-2025-32442",
  "lastModified": "2025-08-22T21:15:31.630",
  "metrics": {
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      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
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  "published": "2025-04-18T16:15:23.327",
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  "vulnStatus": "Modified",
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}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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