{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:free5gc:amf:*:*:*:*:*:go:*:*",
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "1.4.3"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "CPE_RANGE",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "02675d949f207a95379af458c7e80fabe802d728"
            }
          ],
          "repo": "https://github.com/free5gc/amf",
          "type": "GIT"
        },
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:free5gc:free5gc:*:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "4.2.1"
              }
            ],
            "source": "CPE_RANGE"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "52d9545faa42efca71b1567cf7d5c5afca79f490"
            }
          ],
          "repo": "https://github.com/free5gc/free5gc",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-r99v-75p9-xqm5"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-440"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41136.json"
  },
  "details": "free5GC AMF provides Access \u0026 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.",
  "id": "CVE-2026-41136",
  "modified": "2026-08-12T03:51:30.508706640Z",
  "published": "2026-04-21T23:54:36.727Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/free5gc/amf/releases/tag/v1.4.3"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41136.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/free5gc/free5gc/security/advisories/GHSA-r99v-75p9-xqm5"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-41136"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P",
      "type": "CVSS_V4"
    }
  ],
  "summary": "free5GC AMF missing default case in Content-Type switch in HTTPUEContextTransfer"
}