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カテゴリ
CVE-2026-33192

free5GC UDM incorrectly returns 500 for empty supi path parameter in PATCH sdm-subscriptions reques

概要

free5GC UDM incorrectly returns 500 for empty supi path parameter in PATCH sdm-subscriptions reques

原文の説明

取得元が公開している説明をそのまま載せています (多くは英語)。

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 PATCH requests with an empty supi path parameter. Additionally, the UDM incorrectly translates the PATCH method to PUT when forwarding to UDR, indicating a deeper architectural issue. This leaks internal error handling behavior, making it difficult for clients to distinguish between client-side errors and server-side failures. The issue has been patched in version 1.4.2.

出典: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV

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