CVE-2026-44325 free5GC: NRF POST /oauth2/token structured-form parser type-confusion panic family (Reflect.Set on incompatible types)

free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's NRF root SBI endpoint POST /oauth2/token contains a parser-level type-confusion bug family. The handler in NFs/nrf/internal/sbi/apiaccesstoken.go reflects over models.NrfAccessTokenAccessTokenReq,...

CVE-2026-44325 free5GC: NRF POST /oauth2/token structured-form parser type-confusion panic family (Reflect.Set on incompatible types)

free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's NRF root SBI endpoint POST /oauth2/token contains a parser-level type-confusion bug family. The handler in NFs/nrf/internal/sbi/apiaccesstoken.go reflects over models.NrfAccessTokenAccessTokenReq,...

CVE-2026-44325

CVE-2026-44325 affects free5GC NRF (v4.2.1) where POST /oauth2/token parses form data with a reflective type-confusion in api_accesstoken.go. The handler reflects over NrfAccessTokenAccessTokenReq, incorrectly treating most fields as a *models.PlmnId and assigns it to various destination fields, ...

EUVD-2026-32573

free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's NRF root SBI endpoint POST /oauth2/token contains a parser-level type-confusion bug family. The handler in NFs/nrf/internal/sbi/apiaccesstoken.go reflects over models.NrfAccessTokenAccessTokenReq,...

CVE-2026-44326 free5GC: NEF 3gpp-traffic-influence API is unauthenticated; missing or forged bearer tokens can create, read, patch, and delete subscriptions

free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's NEF mounts the 3gpp-traffic-influence API without inbound OAuth2/bearer-token authorization. A network attacker who can reach NEF on the SBI can create, read, patch, and delete traffic-influence subscriptio...

CVE-2026-44326 free5GC: NEF 3gpp-traffic-influence API is unauthenticated; missing or forged bearer tokens can create, read, patch, and delete subscriptions

free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's NEF mounts the 3gpp-traffic-influence API without inbound OAuth2/bearer-token authorization. A network attacker who can reach NEF on the SBI can create, read, patch, and delete traffic-influence subscriptio...

CVE-2026-44326

free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's NEF mounts the 3gpp-traffic-influence API without inbound OAuth2/bearer-token authorization. A network attacker who can reach NEF on the SBI can create, read, patch, and delete traffic-influence subscriptio...

EUVD-2026-32572

free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's NEF mounts the 3gpp-traffic-influence API without inbound OAuth2/bearer-token authorization. A network attacker who can reach NEF on the SBI can create, read, patch, and delete traffic-influence subscriptio...

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-2026-44327 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-2026-44327

CVE-2026-44327 affects free5GC NEF (nnef-oam route group). Prior to v4.2.2, the OAM route group was mounted without inbound OAuth2/bearer-token authorization, allowing unauthenticated requests to hit OAM endpoints via the SBI. The OAM handler is a stub returning null, but the defect is route-grou...

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-2026-44328

free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's SMF mounts the UPI management route group without inbound OAuth2 middleware. On top of that, the DELETE /upi/v1/upNodesLinks/upNodeRef handler unconditionally dereferences upNode.UPF after the type-guarded...

CVE-2026-44328 free5GC: SMF UPI DELETE /upi/v1/upNodesLinks/{ref} panics on AN-node deletion via nil UPF dereference; unauthenticated, state-mutating

free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's SMF mounts the UPI management route group without inbound OAuth2 middleware. On top of that, the DELETE /upi/v1/upNodesLinks/upNodeRef handler unconditionally dereferences upNode.UPF after the type-guarded...

CVE-2026-44328 free5GC: SMF UPI DELETE /upi/v1/upNodesLinks/{ref} panics on AN-node deletion via nil UPF dereference; unauthenticated, state-mutating

free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's SMF mounts the UPI management route group without inbound OAuth2 middleware. On top of that, the DELETE /upi/v1/upNodesLinks/upNodeRef handler unconditionally dereferences upNode.UPF after the type-guarded...

CVE-2026-44328

Summary: CVE-2026-44328 affects free5GC SMF 4.2.1 and is fixed in 4.2.2 via upstream patch PR#199. The SMBI UPI route group was left without inbound OAuth2 middleware, allowing unauthenticated access to delete endpoints. The DELETE /upi/v1/upNodesLinks/{upNodeRef} handler unconditionally derefere...

CVE-2026-44328 free5GC: SMF UPI DELETE /upi/v1/upNodesLinks/{ref} panics on AN-node deletion via nil UPF dereference; unauthenticated, state-mutating

free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's SMF mounts the UPI management route group without inbound OAuth2 middleware. On top of that, the DELETE /upi/v1/upNodesLinks/upNodeRef handler unconditionally dereferences upNode.UPF after the type-guarded...

CVE-2026-44329

CVE-2026-44329 affects free5GC SMF v4.2.1 where the UPI management route group is mounted without OAuth2/bearer-token auth. Consequently, unauthenticated requests to /upi/v1/upNodesLinks (GET, POST with attacker-controlled payload, DELETE /upi/v1/upNodesLinks/{nodeID}) can reach SMF business hand...

CVE-2026-44329

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