CVE-2026-33065

Free5GC is an open-source Linux Foundation project for 5th generation 5G mobile core networks. In versions prior to 1.4.2, the UDM incorrectly converts a downstream 400 Bad Request from UDR into a 500 Internal Server Error when handling DELETE requests with an empty supi path parameter. This leak...

CVE-2026-33065

CVE-2026-33065 affects Free5GC UDM (core network component) prior to version 1.4.2. When handling DELETE requests with an empty supi path (e.g., // in the URL), UDM forwards the malformed request to UDR (which returns 400) but UDM propagates it as 500 SYSTEM_FAILURE, leaking internal error handli...

REST API Security Best Practices

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