CVE-2026-44320

free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's NEF mounts the nnef-callback route group without inbound OAuth2/bearer-token authorization. A forged or arbitrary bearer token e.g. Authorization: Bearer not-a-real-token is enough to reach the SMF-callback...

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 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...

CVE-2026-44326

CVE-2026-44326 affects free5gc NEF 3gpp-traffic-influence API. Prior to version 4.2.2, the NEF mounts the 3gpp-traffic-influence endpoint without inbound OAuth2/bearer-token authorization. An unauthenticated or forged-token request reachable on the SBI can create, read, patch, and delete traffic-...

CVE-2026-44327 free5GC: NEF nnef-oam route group is unauthenticated; no-token requests reach the OAM handler

free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's NEF mounts the nnef-oam route group without inbound OAuth2/bearer-token authorization. A network attacker who can reach NEF on the SBI can hit the OAM route with no Authorization header at all and the handl...

CVE-2026-44330

free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's NEF mounts the nnef-pfdmanagement route group without inbound OAuth2/bearer-token authorization. A network attacker who can reach NEF on the SBI can use a forged or arbitrary bearer token e.g. Authorization...

free5GC's NEF nnef-pfdmanagement API is unauthenticated; forged bearer tokens can read PFD data and create/delete PFD subscriptions

Summary free5GC's NEF mounts the nnef-pfdmanagement route group without inbound OAuth2/bearer-token authorization. A network attacker who can reach NEF on the SBI can use a forged or arbitrary bearer token e.g. Authorization: Bearer not-a-real-token to read PFD application data via GET...

PT-2026-39252

Name of the Vulnerable Software and Affected Versions free5GC versions prior to 4.2.2 Description The Network Exposure Function NEF in free5GC contains a nil-pointer dereference issue within the PatchIndividualApplicationPFDManagement function. This occurs when a PATCH request is sent to the...

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...