TrustTunnel has SSRF and private network restriction bypass via numeric address destinations

{
  "id": "3f6a3e1f94f42bf06abf33485ae2af367c829b5e7568d48687aeebee4790f6f4",
  "url": "https://osv.dev/vulnerability/CVE-2026-24902",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "TrustTunnel has SSRF and private network restriction bypass via numeric address destinations",
    "summary": "TrustTunnel is an open-source VPN protocol with a server-side request forgery and and private network restriction bypass in versions prior to 0.9.114. In `tcp_forwarder.rs`, SSRF protection for `allow_private_network_connections = false` was only applied in the `TcpDestination::HostName(peer)` path. The `TcpDestination::Address(peer) => peer` path proceeded to `TcpStream::connect()` without equivalent checks (for example `is_global_ip`, `is_loopback`), allowing loopback/private targets to be reached by supplying a numeric IP. The vulnerability is fixed in version 0.9.114.",
    "evidence": "osv:CVE-2026-24902",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-24902",
      "aliases": [
        "CVE-2026-24902",
        "GHSA-hgr9-frvw-5r76"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/trusttunnel/trusttunnel",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "734bb5cf103b72390a95c853cbf91e699cc01bc0"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "fixed": "734bb5cf103b72390a95c853cbf91e699cc01bc0"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v0.9.109",
            "v0.9.105",
            "v0.9.102",
            "v0.9.100",
            "v0.9.99",
            "v0.9.96",
            "v0.9.74",
            "v0.9.47",
            "v0.9.43",
            "v0.9.40",
            "v0.9.39",
            "v0.9.38",
            "v0.9.27",
            "v0.9.26",
            "v0.9.24",
            "v0.9.23",
            "v0.9.22",
            "v0.9.20"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-24902.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:35.882753140Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/24xxx/CVE-2026-24902.json",
        "https://github.com/TrustTunnel/TrustTunnel/security/advisories/GHSA-hgr9-frvw-5r76",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-24902",
        "https://github.com/TrustTunnel/TrustTunnel/commit/734bb5cf103b72390a95c853cbf91e699cc01bc0"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-918"
        ],
        "cna_assigner": "GitHub_M",
        "unresolved_ranges": [
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "fixed": "0.9.114"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StringRangeExpression"
              }
            ]
          },
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "fixed": "0.9.114"
                  },
                  {
                    "fixed": "0.9.114"
                  }
                ],
                "source": "DESCRIPTION"
              }
            ]
          }
        ],
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/24xxx/CVE-2026-24902.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-24902",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 503347,
  "published_at": "2026-01-29T21:21:38.878+00:00"
}