CVE-2026-24400

{
  "id": "CVE-2026-24400",
  "cveTags": [],
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          "id": "CVE-2026-24400",
          "role": "CISA Coordinator",
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              "exploitation": "none"
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              "automatable": "no"
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              "technicalImpact": "partial"
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          "version": "2.0.3",
          "timestamp": "2026-01-27T21:36:16.298177Z"
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          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
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          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
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          "product": "assertj",
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  "published": "2026-01-26T23:16:08.803",
  "references": [
    {
      "url": "https://cheatsheetseries.owasp.org/cheatsheets/XML_External_Entity_Prevention_Cheat_Sheet.html",
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      "url": "https://github.com/assertj/assertj/commit/85ca7eb6609bb179c043b85ae7d290523b1ba79a",
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        "Patch"
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    {
      "url": "https://github.com/assertj/assertj/releases/tag/assertj-build-3.27.7",
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        "Product",
        "Release Notes"
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    {
      "url": "https://github.com/assertj/assertj/security/advisories/GHSA-rqfh-9r24-8c9r",
      "tags": [
        "Mitigation",
        "Vendor Advisory"
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  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-611"
        }
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  "descriptions": [
    {
      "lang": "en",
      "value": "AssertJ provides Fluent testing assertions for Java and the Java Virtual Machine (JVM). Starting in version 1.4.0 and prior to version 3.27.7, an XML External Entity (XXE) vulnerability exists in `org.assertj.core.util.xml.XmlStringPrettyFormatter`: the `toXmlDocument(String)` method initializes `DocumentBuilderFactory` with default settings, without disabling DTDs or external entities. This formatter is used by the `isXmlEqualTo(CharSequence)` assertion for `CharSequence` values. An application is vulnerable only when it uses untrusted XML input with either `isXmlEqualTo(CharSequence)` from `org.assertj.core.api.AbstractCharSequenceAssert` or `xmlPrettyFormat(String)` from `org.assertj.core.util.xml.XmlStringPrettyFormatter`. If untrusted XML input is processed by tone of these methods, an attacker couldnread arbitrary local files via `file://` URIs (e.g., `/etc/passwd`, application configuration files); perform Server-Side Request Forgery (SSRF) via HTTP/HTTPS URIs, and/or cause Denial of Service via \"Billion Laughs\" entity expansion attacks. `isXmlEqualTo(CharSequence)` has been deprecated in favor of XMLUnit in version 3.18.0 and will be removed in version 4.0. Users of affected versions should, in order of preference: replace `isXmlEqualTo(CharSequence)` with XMLUnit, upgrade to version 3.27.7, or avoid using `isXmlEqualTo(CharSequence)` or `XmlStringPrettyFormatter` with untrusted input. `XmlStringPrettyFormatter` has historically been considered a utility for `isXmlEqualTo(CharSequence)` rather than a feature for AssertJ users, so it is deprecated in version 3.27.7 and removed in version 4.0, with no replacement."
    },
    {
      "lang": "es",
      "value": "AssertJ proporciona aserciones de prueba fluidas para Java y la Máquina Virtual de Java (JVM). A partir de la versión 1.4.0 y antes de la versión 3.27.7, existe una vulnerabilidad de Entidad Externa XML (XXE) en `org.assertj.core.util.xml.XmlStringPrettyFormatter`: el método `toXmlDocument(String)` inicializa `DocumentBuilderFactory` con configuraciones predeterminadas, sin deshabilitar DTDs o entidades externas. Este formateador es utilizado por la aserción `isXmlEqualTo(CharSequence)` para valores `CharSequence`. Una aplicación es vulnerable solo cuando utiliza entrada XML no confiable con `isXmlEqualTo(CharSequence)` de `org.assertj.core.api.AbstractCharSequenceAssert` o `xmlPrettyFormat(String)` de `org.assertj.core.util.xml.XmlStringPrettyFormatter`. Si la entrada XML no confiable es procesada por uno de estos métodos, un atacante podría leer archivos locales arbitrarios a través de URIs `file://` (por ejemplo, `/etc /passwd`, archivos de configuración de la aplicación); realizar Falsificación de Petición del Lado del Servidor (SSRF) a través de URIs HTTP/HTTPS, y/o causar Denegación de Servicio a través de ataques de expansión de entidad \"Billion Laughs\". `isXmlEqualTo(CharSequence)` ha sido desaprobado a favor de XMLUnit en la versión 3.18.0 y será eliminado en la versión 4.0. Los usuarios de las versiones afectadas deberían, en orden de preferencia: reemplazar `isXmlEqualTo(CharSequence)` con XMLUnit, actualizar a la versión 3.27.7, o evitar usar `isXmlEqualTo(CharSequence)` o `XmlStringPrettyFormatter` con entrada no confiable. `XmlStringPrettyFormatter` históricamente ha sido considerado una utilidad para `isXmlEqualTo(CharSequence)` en lugar de una característica para los usuarios de AssertJ, por lo que es desaprobado en la versión 3.27.7 y eliminado en la versión 4.0, sin reemplazo."
    }
  ],
  "lastModified": "2026-06-17T10:23:00.570",
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