{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "3.1.3"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "fa9f074a33a8059c76c960b1fbee39f308002423"
            }
          ],
          "repo": "https://github.com/pion/stun",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-34rh-wp3j-6cxc"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-20"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54909.json"
  },
  "details": "pion/stun is a Go implementation of STUN. Prior to 3.1.3, XORMappedAddress.GetFromAs can panic while parsing a malformed short XOR-MAPPED-ADDRESS attribute in STUN or ICE Binding-response parsing paths, allowing remote denial of service. This issue is fixed in version 3.1.3.",
  "id": "CVE-2026-54909",
  "modified": "2026-08-02T03:31:55.321792860Z",
  "published": "2026-07-31T22:03:53.514Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/pion/stun/releases/tag/v3.1.3"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54909.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/pion/stun/security/advisories/GHSA-34rh-wp3j-6cxc"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-54909"
    },
    {
      "type": "FIX",
      "url": "https://github.com/pion/stun/commit/fa9f074a33a8059c76c960b1fbee39f308002423"
    },
    {
      "type": "FIX",
      "url": "https://github.com/pion/stun/pull/278"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Pion STUN vulnerable to remote denial of service via panic while parsing a malformed XOR-MAPPED-ADDRESS attribute"
}