Description

free5GC UDR is the user data repository (UDR) for free5GC, an an open-source project for 5th generation (5G) mobile core networks. In versions up to and including 1.4.2, a fail-open request handling flaw in the UDR service causes the `/nudr-dr/v2/policy-data/subs-to-notify` POST handler to continue processing requests even after request body retrieval or deserialization errors. This may allow unintended creation of Policy Data notification subscriptions with invalid, empty, or partially processed input, depending on downstream processor behavior. As of time of publication, a patched version is not available.

INFO

Published Date :

2026-04-21T23:47:33.125Z

Last Modified :

2026-04-22T13:12:25.224Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-40343 vulnerability.

Vendors Products
Free5gc
  • Free5gc
  • Udr
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-40343.

URL Resource
https://github.com/free5gc/free5gc/security/advisories/GHSA-jwch-w7wh-gqjm cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
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Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact