CVE-2026-90707 Open5GS Old AMF Discovery Fallback nnrf-handler.c amf_nnrf_try_old_amf_discovery_fallback use after free

A security flaw has been discovered in Open5GS up to 2.7.x. Affected is the function amfnnrftryoldamfdiscoveryfallback of the file src/amf/nnrf-handler.c of the component Old AMF Discovery Fallback. The manipulation of the argument discoveryoption results in use after free. The attack may be...