CVE-2026-44473
HighSummary
Ella Core, designed for private 5G networks, prior to version 1.10.0, allowed a radio with a valid NG Setup to send forged PDUSessionResourceSetupResponse messages. The system did not verify if the message arrived over the correct NG connection, leading to the creation of a GTP tunnel towards that radio.
Risk Assessment
This vulnerability could lead to unauthorized access to network resources, posing a serious threat to the security of private 5G networks.
Recommendation
It is recommended to upgrade to version 1.10.0 or later to mitigate this vulnerability.
Other vulnerabilities in Ella Core
See all- CVE-2026-34762Low
In Ella Core prior to version 1.8.0, the PUT /api/v1/subscriber/{imsi} API does not verify that the IMSI from the URL path matches the IMSI from the JSON request body. An authenticated NetworkManager can modify any subscriber's policy while the audit trail records a fabricated IMSI. This is fixed in version 1.8.0.
- CVE-2026-34761Medium
Ella Core, a 5G core for private networks, prior to version 1.8.0 panics when processing a NGAP handover failure message. An attacker can send such messages via gNodeB, causing service disruption for all connected subscribers.
Original NVD description (English source)
Ella Core is a 5G core designed for private networks. Prior to 1.10.0, a radio with a valid NG Setup can send a forged PDUSessionResourceSetupResponse carrying any UE's AMF-UE-NGAP-ID. Ella Core does not verify the message arrived on the SCTP association bound to that UE's logical NG-connection, then creates a GTP tunnel towards that radio. This vulnerability is fixed in 1.10.0.