CVE-2026-47780 free5GC: UDR Improper ueId validation in free5GC EE subscription handlers allows arbitrary identifier persistence

free5GC is an open-source implementation of the 5G core network. In 4.2.3 and earlier, HandleCreateEeSubscriptions and HandleQueryeesubscriptions in free5gc/udr internal/sbi/apidatarepository.go validate the ueId path value with a regular expression whose final .+ alternative accepts every...

CVE-2026-44325: Improper Input Validation

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-2026-7518 Open5GS AMF SBI Endpoint sdmsubscription-notify amf_namf_callback_handle_sdm_data_change_notify denial of service

A flaw has been found in Open5GS up to 2.7.7. This issue affects the function amfnamfcallbackhandlesdmdatachangenotify of the file /namf-callback/v1/id/sdmsubscription-notify of the component AMF SBI Endpoint. This manipulation of the argument changeItem.newValue causes denial of service. The...

CVE-2026-7518 Open5GS AMF SBI Endpoint sdmsubscription-notify amf_namf_callback_handle_sdm_data_change_notify denial of service

A flaw has been found in Open5GS up to 2.7.7. This issue affects the function amfnamfcallbackhandlesdmdatachangenotify of the file /namf-callback/v1/id/sdmsubscription-notify of the component AMF SBI Endpoint. This manipulation of the argument changeItem.newValue causes denial of service. The...

CVE-2026-7518

A flaw has been found in Open5GS up to 2.7.7. This issue affects the function amfnamfcallbackhandlesdmdatachangenotify of the file /namf-callback/v1/id/sdmsubscription-notify of the component AMF SBI Endpoint. This manipulation of the argument changeItem.newValue causes denial of service. The...

CVE-2026-7518

Open5GS AMF SBI Endpoint (named path /namf-callback/v1/{id}/sdmsubscription-notify) is affected up to version 2.7.7. The vulnerability arises in amf_namf_callback_handle_sdm_data_change_notify where manipulation of changeItem.newValue leads to denial of service. The issue can be triggered remotel...

CVE-2026-7518: Improper Resource Shutdown or Release

A flaw has been found in Open5GS up to 2.7.7. This issue affects the function amfnamfcallbackhandlesdmdatachangenotify of the file /namf-callback/v1/id/sdmsubscription-notify of the component AMF SBI Endpoint. This manipulation of the argument changeItem.newValue causes denial of service. The...

CVE-2025-55904

Open5GS v2.7.5, prior to commit 67ba7f92bbd7a378954895d96d9d7b05d5b64615, is vulnerable to a NULL pointer dereference when a multipart/related HTTP POST request with an empty HTTP body is sent to the SBI of either AMF, AUSF, BSF, NRF, NSSF, PCF, SMF, UDM, or UDR, resulting in a denial of service...