CVE-2024-38537

{
  "id": "CVE-2024-38537",
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              "technicalImpact": "partial"
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          "version": "2.0.3",
          "timestamp": "2024-07-02T20:11:37.728266Z"
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  "affected": [
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      "affectedData": [
        {
          "vendor": "ethyca",
          "product": "fides",
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            {
              "status": "affected",
              "version": "< 2.39.1"
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  "published": "2024-07-02T20:15:05.860",
  "references": [
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      "url": "https://fetch.spec.whatwg.org",
      "tags": [
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    {
      "url": "https://github.com/ethyca/fides/commit/868c4d629760572192bd61db34f5a4458ed12005",
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    {
      "url": "https://github.com/ethyca/fides/pull/5026",
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        "Patch"
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    {
      "url": "https://github.com/ethyca/fides/security/advisories/GHSA-cvw4-c69g-7v7m",
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        "Patch",
        "Third Party Advisory"
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  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-829"
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Fides is an open-source privacy engineering platform. `fides.js`, a client-side script used to interact with the consent management features of Fides, used the `polyfill.io` domain in a very limited edge case, when it detected a legacy browser such as IE11 that did not support the fetch standard. Therefore it was possible for users of legacy, pre-2017 browsers who navigate to a page serving `fides.js` to download and execute malicious scripts from the `polyfill.io` domain when the domain was compromised and serving malware. No exploitation of `fides.js` via `polyfill.io` has been identified as of time of publication.\n\nThe vulnerability has been patched in Fides version `2.39.1`. Users are advised to upgrade to this version or later to secure their systems against this threat. On Thursday, June 27, 2024, Cloudflare and Namecheap intervened at a domain level to ensure `polyfill.io` and its subdomains could not resolve to the compromised service, rendering this vulnerability unexploitable. Prior to the domain level intervention, there were no server-side workarounds and the confidentiality, integrity, and availability impacts of this vulnerability were high. Clients could ensure they were not affected by using a modern browser that supported the fetch standard."
    },
    {
      "lang": "es",
      "value": "Fides es una plataforma de ingeniería de privacidad de código abierto. `fides.js`, un script del lado del cliente utilizado para interactuar con las funciones de gestión de consentimiento de Fides, utilizó el dominio `polyfill.io` en un caso límite muy limitado, cuando detectó un navegador heredado como IE11 que no admitía el estándar de recuperación. Por lo tanto, era posible que los usuarios de navegadores heredados anteriores a 2017 que navegaban a una página que servía `fides.js` descargaran y ejecutaran scripts maliciosos desde el dominio `polyfill.io` cuando el dominio estaba comprometido y servía malware. No se ha identificado ninguna explotación de `fides.js` a través de `polyfill.io` al momento de la publicación. La vulnerabilidad ha sido parcheada en la versión `2.39.1` de Fides. Se recomienda a los usuarios que actualicen a esta versión o posterior para proteger sus sistemas contra esta amenaza. El jueves 27 de junio de 2024, Cloudflare y Namecheap intervinieron a nivel de dominio para garantizar que `polyfill.io` y sus subdominios no pudieran resolver el servicio comprometido, haciendo que esta vulnerabilidad no se pudiera explotar. Antes de la intervención a nivel de dominio, no había workarounds en el lado del servidor y los impactos de esta vulnerabilidad en la confidencialidad, integridad y disponibilidad eran altos. Los clientes podían asegurarse de no verse afectados utilizando un navegador moderno que admitiera el estándar de recuperación."
    }
  ],
  "lastModified": "2026-06-17T07:40:29.600",
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