free5GC AMF provides Access & Mobility Management Function (AMF) for free5GC, an an open-source project for 5th generation (5G) mobile core networks. Prior to version 1.4.3, the HTTPUEContextTransfer handler in internal/sbi/api_communication.go does not include a default case in the Content-Type switch statement. When a request arrives with an unsupported Content-Type, the deserialization step is silently skipped, err remains nil, and the processor is invoked with a completely uninitialized UeContextTransferRequest object. Version 1.4.3 contains a fix.
{
"cwe_ids": [
"CWE-440"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41136.json",
"cna_assigner": "GitHub_M"
}{
"cpe": "cpe:2.3:a:free5gc:amf:*:*:*:*:*:go:*:*",
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "1.4.3"
}
],
"source": [
"AFFECTED_FIELD",
"CPE_RANGE",
"REFERENCES"
]
}
{
"cpe": "cpe:2.3:a:free5gc:free5gc:*:*:*:*:*:*:*:*",
"source": "CPE_RANGE",
"extracted_events": [
{
"introduced": "0"
},
{
"last_affected": "4.2.1"
}
]
}