free5GC's NEF crashes via logger.Fatal on PFD notification delivery failure (attacker-controlled notifyUri)

Summary free5GC's NEF terminates the entire process when a stored PFD-subscription notifyUri cannot be reached. In PfdChangeNotifier.FlushNotifications, the notifier calls NnefPFDmanagementNotify... and on any delivery error invokes logger.PFDManageLog.Fatalerr, which is os.Exit1-equivalent in Go...

GHSA-5F62-53R8-QRQF free5GC's NEF 3gpp-pfd-management API is unauthenticated; forged bearer tokens can create, read, and delete PFD transactions

Summary free5GC's NEF mounts the 3gpp-pfd-management API without inbound OAuth2/bearer-token authorization. A network attacker who can reach NEF on the SBI can create, read, and delete PFD-management transaction state with a forged or arbitrary bearer token e.g. Authorization: Bearer...

Missing Authorization

Overview Affected versions of this package are vulnerable to Missing Authorization via the 3gpp-pfd-management API. An attacker can create, read, and delete transaction state by sending requests with forged or arbitrary bearer tokens, even if the service is not declared in the configuration...

Missing Authorization

Overview Affected versions of this package are vulnerable to Missing Authorization via the 3gpp-pfd-management API. An attacker can create, read, and delete transaction state by sending requests with forged or arbitrary bearer tokens, even if the service is not declared in the configuration...

PT-2026-39249

Name of the Vulnerable Software and Affected Versions free5GC versions prior to 4.2.2 Description The Network Exposure Function NEF in free5GC terminates the entire process when a stored PFD-subscription notifyUri cannot be reached. This occurs within the PfdChangeNotifier.FlushNotifications...

PT-2026-39245

Name of the Vulnerable Software and Affected Versions free5GC versions prior to 4.2.2 Description The Network Exposure Function NEF in free5GC mounts the '3gpp-pfd-management' API without inbound OAuth2 or bearer-token authorization. A network attacker with access to the Service Based Interface S...

PT-2026-39260

Name of the Vulnerable Software and Affected Versions free5GC version 4.2.1 Description The Network Exposure Function NEF mounts the nnef-pfdmanagement route group without inbound OAuth2 or bearer-token authorization. This allows a network attacker with access to the Service-Based Interface SBI t...

CVE-2025-69208

free5GC UDR is the user data repository UDR for free5GC, an an open-source project for 5th generation 5G mobile core networks. Versions prior to 1.4.1 contain an Improper Error Handling vulnerability with Information Exposure. All deployments of free5GC using the NnefPfdManagement service may be...

Information Exposure

Overview Affected versions of this package are vulnerable to Information Exposure via the NnefPfdManagement process. An attacker can obtain internal parsing error details by sending malformed requests to the NEF component, which may assist in service fingerprinting. Remediation Upgrade...

EUVD-2026-7462

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 1.4.1, the NEF component reliably leaks internal parsing error details e.g., invalid character 'n' after top-level value to remote clients...

CVE-2026-27643

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 1.4.1, the NEF component reliably leaks internal parsing error details e.g., invalid character 'n' after top-level value to remote clients...

CVE-2026-27643 free5GC has improper error handling in NEF with information exposure

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 1.4.1, the NEF component reliably leaks internal parsing error details e.g., invalid character 'n' after top-level value to remote clients...

EUVD-2025-207565

free5GC is an open-source project for 5th generation 5G mobile core networks. Versions up to and including 1.4.1 of the User Data Repository are affected by Improper Error Handling with Information Exposure. The NEF component reliably leaks internal parsing error details e.g., invalid character '...

PT-2026-21593

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 1.4.1, the NEF component reliably leaks internal parsing error details e.g., invalid character 'n' after top-level value to remote clients...

CVE-2025-69208

The CVE concerns free5GC UDR (UDR component of the free5GC project) with an Improper Error Handling vulnerability in Nnef_PfdManagement GET, leaking internal parsing errors to clients. Affected: free5GC versions prior to 1.4.1; impact is information exposure with potential fingerprinting. Version...

CVE-2025-69208 free5GC UDR's NEF incorrectly returns 500 for missing PFD data (UDR 404) in Nnef_PfdManagement GET request

free5GC UDR is the user data repository UDR for free5GC, an an open-source project for 5th generation 5G mobile core networks. Versions prior to 1.4.1 contain an Improper Error Handling vulnerability with Information Exposure. All deployments of free5GC using the NnefPfdManagement service may be...