{
  "document": {
    "category": "csaf_vex",
    "csaf_version": "2.0",
    "lang": "en-US",
    "publisher": {
      "category": "coordinator",
      "contact_details": "https://www.cisa.gov/report",
      "issuing_authority": "CISA",
      "name": "CISA",
      "namespace": "https://www.cisa.gov/"
    },
    "title": "wormhole.app WebRTC TURN relay",
    "tracking": {
      "current_release_date": "2026-10-01T15:30:52Z",
      "generator": {
        "engine": {
          "name": "VINCE-NT",
          "version": "1.15.0+build.129"
        }
      },
      "id": "VA-26-275-04",
      "initial_release_date": "2026-10-01T15:30:52Z",
      "status": "final",
      "version": "1.0.0",
      "revision_history": [
        {
          "number": "1.0.0",
          "summary": "Initial Publication",
          "date": "2026-10-01T15:30:52Z"
        }
      ]
    },
    "distribution": {
      "tlp": {
        "label": "WHITE"
      }
    },
    "notes": [
      {
        "text": "All information products included in [https://github.com/cisagov/CSAF/tree/develop/csaf_files/IT/white](https://github.com/cisagov/CSAF/tree/develop/csaf_files/IT/white) are provided \\\"as is\\\" for informational purposes only. The Department of Homeland Security (DHS) does not provide any warranties of any kind regarding any information contained within. DHS does not endorse any commercial product or service, referenced in this product or otherwise. Further dissemination of this product is governed by the Traffic Light Protocol (TLP) marking in the header. For more information about TLP, see [https://us-cert.cisa.gov/tlp/](https://us-cert.cisa.gov/tlp/).",
        "title": "Legal Notice",
        "category": "legal_disclaimer"
      },
      {
        "text": "Worldwide",
        "title": "Countries and Areas Deployed",
        "category": "other"
      },
      {
        "text": "Information Technology",
        "title": "Critical Infrastructure Sectors",
        "category": "other"
      },
      {
        "text": "Wormhole.app as deployed before 2026-08-22 misconfigures the coturn TURN server and does not properly restrict TCP relay peers, allowing an unauthenticated attacker to access instance metadata or to source TCP connections from the Wormhole relay's IP.",
        "title": "Risk Evaluation",
        "category": "summary"
      },
      {
        "text": "Fixed 2026-08-22.",
        "title": "Recommended Practices",
        "category": "general"
      },
      {
        "text": "United States",
        "title": "Company Headquarters Location",
        "category": "other"
      }
    ],
    "references": [
      {
        "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-275-04.json",
        "summary": "Vulnerability Advisory VA-26-275-04 CSAF",
        "category": "self"
      }
    ]
  },
  "product_tree": {
    "branches": [
      {
        "category": "vendor",
        "name": "Wormhole App",
        "branches": [
          {
            "category": "product_name",
            "name": "Wormhole",
            "branches": [
              {
                "category": "product_version_range",
                "name": "<2026-08-22",
                "product": {
                  "name": "Wormhole App Wormhole <2026-08-22",
                  "product_id": "CSAFPID-0001"
                }
              },
              {
                "category": "product_version",
                "name": "2026-08-22",
                "product": {
                  "name": "Wormhole App Wormhole 2026-08-22",
                  "product_id": "CSAFPID-0002"
                }
              }
            ]
          }
        ]
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-100251",
      "cwe": {
        "id": "CWE-918",
        "name": "Server-Side Request Forgery (SSRF)"
      },
      "notes": [
        {
          "category": "summary",
          "text": "Wormhole.app as deployed before 2026-08-22 misconfigures the coturn TURN server and does not properly restrict TCP relay peers, allowing an unauthenticated attacker to access instance metadata or to source TCP connections from the Wormhole relay's IP.",
          "title": "Description"
        },
        {
          "category": "details",
          "title": "SSVC",
          "text": "SSVCv2/E:N/A:Y/T:P/2026-09-25T16:36:18Z/"
        }
      ],
      "title": "Wormhole.app SSRF",
      "product_status": {
        "known_affected": [
          "CSAFPID-0001"
        ],
        "fixed": [
          "CSAFPID-0002"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "wormhole.app",
          "url": "https://wormhole.app/"
        },
        {
          "category": "external",
          "summary": "raw.githubusercontent.com",
          "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-275-04.json"
        },
        {
          "category": "external",
          "summary": "www.cve.org",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-100251"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-0001"
          ]
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Fixed 2026-08-22.",
          "product_ids": [
            "CSAFPID-0001"
          ],
          "date": "2026-08-22T00:00:00Z"
        },
        {
          "category": "vendor_fix",
          "details": "Fixed 2026-08-22.",
          "product_ids": [
            "CSAFPID-0002"
          ],
          "date": "2026-08-22T00:00:00Z"
        }
      ],
      "acknowledgments": [
        {
          "names": [
            "Shreyash Naik"
          ]
        }
      ],
      "release_date": "2026-10-01T00:00:00Z"
    }
  ]
}