CVE-2026-44315: free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's NEF mounts the 3gpp-pfd-management API without inbound…

PriorityP262critical9.4CVSS 3.1

AVNACLPRNUINSUCLIHAH

EPSS

0.31%

23.1th percentile

free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, 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 not-a-real-token). The route group is also reachable even when the running config's ServiceList does not declare it, so operators who think they disabled the service via config are still exposed. This vulnerability is fixed in 4.2.2.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
free5gc	free5gc	< 4.2.2	4.2.2
github.com	free5gc_nef	0 – 1.2.3	—

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