CVE-2026-54909

{
  "id": "CVE-2026-54909",
  "sourceIdentifier": "[email protected]",
  "published": "2026-07-31T23:17:25.433",
  "lastModified": "2026-10-23T23:10:00.157",
  "vulnStatus": "Awaiting Analysis",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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."
    },
    {
      "lang": "es",
      "value": "pion/stun es una implementación de STUN en Go. Antes de la versión 3.1.3, XORMappedAddress.GetFromAs puede entrar en pánico al analizar un atributo XOR-MAPPED-ADDRESS corto malformado en las rutas de análisis de STUN o ICE Binding-response, lo que permite la denegación de servicio remota. Este problema se ha solucionado en la versión 3.1.3."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "pion",
          "product": "stun",
          "versions": [
            {
              "version": "< 3.1.3",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "LOW"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-08-03T17:28:49.547530Z",
          "id": "CVE-2026-54909",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/pion/stun/commit/fa9f074a33a8059c76c960b1fbee39f308002423",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/pion/stun/pull/278",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/pion/stun/releases/tag/v3.1.3",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/pion/stun/security/advisories/GHSA-34rh-wp3j-6cxc",
      "source": "[email protected]"
    }
  ]
}