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CVE-2026-42858

Full vulnerability record from the local CVENow database.

Description

Open edX Platform enables the authoring and delivery of online learning at any scale. The sync_provider_data endpoint in SAMLProviderDataViewSet allows authenticated Enterprise Admin users to supply an arbitrary URL via the metadata_url POST parameter. This URL is passed directly to requests.get() in fetch_metadata_xml() without any URL validation, IP filtering, or scheme enforcement. An attacker with Enterprise Admin privileges can force the server to make HTTP requests to internal network services, cloud metadata endpoints (e.g., AWS 169.254.169.254), or other attacker-controlled destinations. This vulnerability is fixed by commit 6fda1f120ff5a590d120ae1180185525f399c6d0 and 70a56246dd9c9df57c596e64bdd8a11b1d9da054.

Severity
CRITICAL
CVSS score
9.9 (v3.1)
Vulnerability status
Analyzed
Source identifier
Published
2026-05-11 18:16:36.263000
Last modified
2026-10-26 18:10:00.173000
View original CVE JSON
{
  "id": "CVE-2026-42858",
  "sourceIdentifier": "[email protected]",
  "published": "2026-05-11T18:16:36.263",
  "lastModified": "2026-10-26T18:10:00.173",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Open edX Platform enables the authoring and delivery of online learning at any scale. The sync_provider_data endpoint in SAMLProviderDataViewSet allows authenticated Enterprise Admin users to supply an arbitrary URL via the metadata_url POST parameter. This URL is passed directly to requests.get() in fetch_metadata_xml() without any URL validation, IP filtering, or scheme enforcement. An attacker with Enterprise Admin privileges can force the server to make HTTP requests to internal network services, cloud metadata endpoints (e.g., AWS 169.254.169.254), or other attacker-controlled destinations. This vulnerability is fixed by commit 6fda1f120ff5a590d120ae1180185525f399c6d0 and 70a56246dd9c9df57c596e64bdd8a11b1d9da054."
    },
    {
      "lang": "es",
      "value": "La Plataforma Open edX permite la creación y entrega de aprendizaje en línea a cualquier escala. El endpoint sync_provider_data en SAMLProviderDataViewSet permite a usuarios Enterprise Admin autenticados proporcionar una URL arbitraria a través del parámetro POST metadata_url. Esta URL se pasa directamente a requests.get() en fetch_metadata_xml() sin ninguna validación de URL, filtrado de IP o aplicación de esquema. Un atacante con privilegios de Enterprise Admin puede forzar al servidor a realizar solicitudes HTTP a servicios de red internos, endpoints de metadatos en la nube (por ejemplo, AWS 169.254.169.254) o a otros destinos controlados por el atacante. Esta vulnerabilidad se corrige con el commit 6fda1f120ff5a590d120ae1180185525f399c6d0 y 70a56246dd9c9df57c596e64bdd8a11b1d9da054."
    }
  ],
  "affected": [
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          "product": "openedx-platform",
          "versions": [
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          "scope": "CHANGED",
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          "integrityImpact": "LOW",
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