Description

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.

INFO

Published Date :

2026-03-20T08:09:07.459Z

Last Modified :

2026-03-20T12:21:06.644Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-33192 vulnerability.

Vendors Products
Free5gc
  • Free5gc
  • Udm
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-33192.

URL Resource
https://github.com/free5gc/free5gc/issues/784 cve-icon cve-icon
https://github.com/free5gc/free5gc/security/advisories/GHSA-5rvc-5cwx-g5x8 cve-icon cve-icon
https://github.com/free5gc/udm/pull/79 cve-icon cve-icon
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