CVE-2026-42860: edx-enterprise has SSRF via SAML metadata URL in sync_provider_data endpoint

May 5, 2026 (updated June 6, 2026)

The sync_provider_data endpoint in SAMLProviderDataViewSet fetches SAML metadata from a URL stored in SAMLProviderConfig.metadata_source. An authenticated user with the Enterprise Admin role can set this field to an arbitrary URL via the SAMLProviderConfigViewSet PATCH endpoint, then trigger a server-side HTTP request by calling sync_provider_data. The fetch in fetch_metadata_xml() passes the URL directly to requests.get() with no scheme enforcement, IP filtering, or timeout.

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Code Behaviors & Features

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