CVE-2026-41135

free5GC UDR is the Policy Control Function PCF for free5GC, an an open-source project for 5th generation 5G mobile core networks. A memory leak vulnerability in versions prior to 1.4.3 allows any unauthenticated attacker with network access to the PCF SBI interface to cause uncontrolled memory...

CVE-2026-44316

free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's PCF POST /npcf-smpolicycontrol/v1/sm-policies handler HandleCreateSmPolicyRequest panics with a nil-pointer dereference when a downstream OpenAPI consumer call UDR lookup returns 404 Not Found and the...

CVE-2026-44316 free5GC: PCF npcf-smpolicycontrol POST /sm-policies panics on downstream UDR/OpenAPI 404 via nil pointer dereference

free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's PCF POST /npcf-smpolicycontrol/v1/sm-policies handler HandleCreateSmPolicyRequest panics with a nil-pointer dereference when a downstream OpenAPI consumer call UDR lookup returns 404 Not Found and the...

CVE-2026-44316

The CVE describes a nil-pointer dereference in free5GC PCF (POST /npcf-smpolicycontrol/v1/sm-policies) HandleCreateSmPolicyRequest. When a downstream OpenAPI (UDR) lookup returns 404 and the wrapper returns err != nil with a nil response, the code logs the error but does not return, then derefere...

CVE-2026-44317 free5GC: PCF npcf-policyauthorization POST /app-sessions panics on suppFeat=1 with missing AfRoutReq via nil pointer dereference

free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's PCF POST /npcf-policyauthorization/v1/app-sessions handler panics on a single authenticated request whose ascReqData.suppFeat == "1" enabling traffic-routing feature negotiation and whose medComponents...

EUVD-2026-32551

free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's PCF POST /npcf-policyauthorization/v1/app-sessions handler panics on a single authenticated request whose ascReqData.suppFeat == "1" enabling traffic-routing feature negotiation and whose medComponents...

free5GC 安全漏洞

free5GC is an open-source project for the 5th generation 5G mobile core network. Versions of free5GC prior to 4.2.2 contained security vulnerabilities. These vulnerabilities stemmed from the PCF’s HandleCreateSmPolicyRequest handler, which encountered a null pointer dereferencing when UDR returne...

CVE-2026-8224

A vulnerability was determined in Open5GS up to 2.7.7. Affected by this issue is the function pcfsesssetipv6prefix of the file /src/pcf/context.c of the component PCF. Executing a manipulation of the argument SmPolicyContextData.ipv6AddressPrefix can lead to denial of service. It is possible to...

EUVD-2026-28960

A vulnerability was determined in Open5GS up to 2.7.7. Affected by this issue is the function pcfsesssetipv6prefix of the file /src/pcf/context.c of the component PCF. Executing a manipulation of the argument SmPolicyContextData.ipv6AddressPrefix can lead to denial of service. It is possible to...

CVE-2026-8224 Open5GS PCF context.c pcf_sess_set_ipv6prefix denial of service

A vulnerability was determined in Open5GS up to 2.7.7. Affected by this issue is the function pcfsesssetipv6prefix of the file /src/pcf/context.c of the component PCF. Executing a manipulation of the argument SmPolicyContextData.ipv6AddressPrefix can lead to denial of service. It is possible to...

PT-2026-39544

Name of the Vulnerable Software and Affected Versions Open5GS versions prior to 2.7.8 Description A remote denial of service issue exists in the SMF component. The flaw is located in the update authorized pcc rule and qos function within the /src/smf/npcf-handler.c file. Manipulation of this...

PT-2026-39442

Name of the Vulnerable Software and Affected Versions Open5GS versions prior to 2.7.8 Description A remote denial of service can be triggered in the PCF component via the pcf sess set ipv6prefix function located in the /src/pcf/context.c file. This occurs through the manipulation of the...

free5GC's PCF npcf-policyauthorization POST /app-sessions panics on suppFeat=1 with missing AfRoutReq via nil pointer dereference

Summary free5GC's PCF POST /npcf-policyauthorization/v1/app-sessions handler panics on a single authenticated request whose ascReqData.suppFeat == "1" enabling traffic-routing feature negotiation and whose medComponents entries supply an afAppId but NO AfRoutReq. The create path then calls...

free5GC's PCF npcf-smpolicycontrol POST /sm-policies panics on downstream UDR/OpenAPI 404 via nil pointer dereference

Summary free5GC's PCF POST /npcf-smpolicycontrol/v1/sm-policies handler HandleCreateSmPolicyRequest panics with a nil-pointer dereference when a downstream OpenAPI consumer call UDR lookup returns 404 Not Found and the consumer wrapper returns err != nil together with a nil response struct. The...

free5GC PCF: Memory Leak via CORS Middleware Registration in HTTP Handler Leads to Denial of Service

Summary A memory leak vulnerability in the free5GC PCF Policy Control Function allows any unauthenticated attacker with network access to the PCF SBI interface to cause uncontrolled memory growth by sending repeated HTTP requests to the OAM endpoint. The root cause is a router.Use call inside an...

EUVD-2026-24575

free5GC PCF: Memory Leak via CORS Middleware Registration in HTTP Handler Leads to Denial of Service...

CVE-2026-41135

free5GC UDR is the Policy Control Function PCF for free5GC, an an open-source project for 5th generation 5G mobile core networks. A memory leak vulnerability in versions prior to 1.4.3 allows any unauthenticated attacker with network access to the PCF SBI interface to cause uncontrolled memory...

CVE-2026-41135

CVE-2026-41135 affects free5GC UDR (PCF) prior to version 1.4.3. The root cause is a faulty router.Use() call inside an HTTP handler that registers a new CORS middleware on every incoming request, causing the Gin router to permanently grow its handler chain. This leads to progressive memory exhau...

PT-2026-34224

Name of the Vulnerable Software and Affected Versions free5GC UDR versions prior to 1.4.3 Description A memory leak in the Policy Control Function PCF allows an unauthenticated attacker with network access to the PCF SBI interface to cause uncontrolled memory growth. By sending repeated HTTP...

Denial Of Service (DoS)

github.com/free5gc/pcf is vulnerable to Denial of Service DoS. The vulnerability is due to improper handling of crafted POST requests to the NpcfBDTPolicyControl API, which allows an attacker to trigger service disruption...