{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "52e9386401ce56ea773c5aa587d4cdf7d53da799"
            }
          ],
          "repo": "https://github.com/free5gc/amf",
          "type": "GIT"
        }
      ]
    }
  ],
  "details": "A weakness has been identified in Free5GC 4.1.0. Affected is the function HandleRegistrationComplete of the file internal/gmm/handler.go of the component AMF. Executing a manipulation can lead to denial of service. The attack may be performed from remote. This patch is called 52e9386401ce56ea773c5aa587d4cdf7d53da799. It is best practice to apply a patch to resolve this issue.",
  "id": "CVE-2026-4531",
  "modified": "2026-04-01T23:08:06.080711133Z",
  "published": "2026-03-22T02:15:59.270Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/free5gc/free5gc/"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/?ctiid.352319"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/?id.352319"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/?submit.774073"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/free5gc/free5gc/issues/792"
    },
    {
      "type": "FIX",
      "url": "https://github.com/free5gc/amf/commit/52e9386401ce56ea773c5aa587d4cdf7d53da799"
    },
    {
      "type": "FIX",
      "url": "https://github.com/free5gc/amf/pull/198"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    }
  ]
}