{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "source": "REFERENCES"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3a11f6111919245a3090e9f3895cfc4f21a80d28"
            },
            {
              "fixed": "5492cabbef4ddc7f60cc49cdf5d8c74ed2e5d949"
            },
            {
              "fixed": "5ee60395e78e8b822d9a78efeacc6039c249819b"
            }
          ],
          "repo": "https://github.com/bsv-blockchain/ts-stack",
          "type": "GIT"
        }
      ]
    },
    {
      "ranges": [
        {
          "database_specific": {
            "source": "REFERENCES"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "ca651b067c0238cd8b1ddd3af225daa503857a07"
            }
          ],
          "repo": "https://github.com/bsv-blockchain/wallet-toolbox",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-36f9-7rg5-cpf8"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-1288"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56744.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "introduced": "1.1.47"
          },
          {
            "fixed": "2.4.0"
          },
          {
            "introduced": "1.1.47"
          },
          {
            "fixed": "2.4.0"
          },
          {
            "introduced": "1.3.21"
          },
          {
            "fixed": "2.4.0"
          }
        ],
        "source": "AFFECTED_FIELD"
      },
      {
        "extracted_events": [
          {
            "introduced": "1.1.47"
          },
          {
            "fixed": "2.3.3"
          },
          {
            "fixed": "2.3.3"
          }
        ],
        "source": "DESCRIPTION"
      }
    ]
  },
  "details": "`@bsv/wallet-toolbox` provides BRC-100 wallet signing and storage components, while `@bsv/wallet-toolbox-client` and `@bsv/wallet-toolbox-mobile` provide client-focused distributions for standard and mobile applications using wallet storage services. A vulnerability in these packages causes transactions created through a remote `StorageClient` to trust output locking scripts returned by the storage provider without verifying that they match the outputs requested by the caller. A malicious or compromised storage provider can substitute a recipient script or inject an additional output, causing the wallet to sign and broadcast a transaction that redirects funds while the application and user interface continue to display the intended recipient. Source and npm publication history indicate that stable versions `@bsv/wallet-toolbox` and `@bsv/wallet-toolbox-client` from 1.1.47 through 2.3.3, and `@bsv/wallet-toolbox-mobile` from its initial 1.3.21 release through 2.3.3, are affected. All three packages are patched in version 2.4.0. Applications unable to upgrade should avoid remote `StorageClient` providers, use local storage, or independently verify every transaction output’s locking script and value against the original request before signing",
  "id": "CVE-2026-56744",
  "modified": "2026-09-26T03:30:21.155030474Z",
  "published": "2026-09-24T16:56:12.791Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56744.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/bsv-blockchain/ts-stack/security/advisories/GHSA-36f9-7rg5-cpf8"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-56744"
    },
    {
      "type": "FIX",
      "url": "https://github.com/bsv-blockchain/ts-stack/commit/3a11f6111919245a3090e9f3895cfc4f21a80d28"
    },
    {
      "type": "FIX",
      "url": "https://github.com/bsv-blockchain/ts-stack/commit/5492cabbef4ddc7f60cc49cdf5d8c74ed2e5d949"
    },
    {
      "type": "FIX",
      "url": "https://github.com/bsv-blockchain/ts-stack/commit/5ee60395e78e8b822d9a78efeacc6039c249819b"
    },
    {
      "type": "FIX",
      "url": "https://github.com/bsv-blockchain/wallet-toolbox/commit/ca651b067c0238cd8b1ddd3af225daa503857a07"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "`@bsv/wallet-toolbox` / `-client` / `-mobile` don't verify storage-supplied recipient output scripts against caller-requested outputs in createAction (can redirect payments when using remote storage)"
}