{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "2.0"
              },
              {
                "last_affected": "2.0"
              },
              {
                "introduced": "2.1"
              },
              {
                "last_affected": "2.1"
              },
              {
                "introduced": "2.2"
              },
              {
                "last_affected": "2.2"
              },
              {
                "introduced": "2.3"
              },
              {
                "last_affected": "2.3"
              },
              {
                "introduced": "2.4"
              },
              {
                "last_affected": "2.4"
              },
              {
                "introduced": "2.7"
              },
              {
                "last_affected": "2.7"
              },
              {
                "introduced": "2.8.0"
              },
              {
                "last_affected": "2.8.0"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "23c57b84b893f585908c95a1d7d94a8e5b484445"
            },
            {
              "fixed": "c9abe09421eb99bbf1cd7862a3d375e58a4eb9e4"
            }
          ],
          "repo": "https://github.com/open5gs/open5gs",
          "type": "GIT"
        }
      ],
      "versions": [
        "2.0",
        "2.1",
        "2.2",
        "2.3",
        "2.4",
        "2.7",
        "2.8.0"
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulDB",
    "cwe_ids": [
      "CWE-617"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/78xxx/CVE-2026-78186.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "introduced": "2.5"
          },
          {
            "last_affected": "2.5"
          },
          {
            "introduced": "2.6"
          },
          {
            "last_affected": "2.6"
          }
        ],
        "source": "AFFECTED_FIELD"
      }
    ]
  },
  "details": "A flaw has been found in Open5GS up to 2.8.0. This affects an unknown function of the file src/hss/hss-cx-path.c of the component HSS. This manipulation of the argument User-Name causes reachable assertion. The attack is possible to be carried out remotely. The exploit has been published and may be used. Patch name: c9abe09421eb99bbf1cd7862a3d375e58a4eb9e4. It is recommended to apply a patch to fix this issue.",
  "id": "CVE-2026-78186",
  "modified": "2026-08-27T11:30:35.670149412Z",
  "published": "2026-08-24T04:15:08.586Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/open5gs/open5gs/"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/78xxx/CVE-2026-78186.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-78186"
    },
    {
      "type": "ADVISORY",
      "url": "https://vuldb.com/cve/CVE-2026-78186"
    },
    {
      "type": "ADVISORY",
      "url": "https://vuldb.com/submit/885203"
    },
    {
      "type": "ADVISORY",
      "url": "https://vuldb.com/vuln/394568"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/open5gs/open5gs/issues/4675"
    },
    {
      "type": "REPORT",
      "url": "https://vuldb.com/vuln/394568/cti"
    },
    {
      "type": "FIX",
      "url": "https://github.com/open5gs/open5gs/commit/c9abe09421eb99bbf1cd7862a3d375e58a4eb9e4"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Open5GS HSS hss-cx-path.c assertion"
}