{"id":"CVE-2026-56744","revision":"47391e7ef5b74fa28a80f2eba2c8b126","records":[{"revision":"47391e7ef5b74fa28a80f2eba2c8b126","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-56744","aliases":[],"title":"`@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)","description":"`@bsv/wallet-toolbox` provides BRC-100 wallet signing and storage components, while `@bsv/wallet-toolbox-client`\u00A0and `@bsv/wallet-toolbox-mobile`\u00A0provide 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","state":0,"publishedAt":"2026-09-24T16:56:12.791+00:00","modifiedAt":"2026-09-28T17:17:16.996+00:00","affected":[{"ecosystem":"Vendor product","name":"@bsv/wallet-toolbox","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"bsv-blockchain\",\n                    \"product\": \"@bsv/wallet-toolbox\",\n                    \"versions\": [\n                        {\n                            \"version\": \">= 1.1.47, < 2.4.0\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"@bsv/wallet-toolbox-client","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"bsv-blockchain\",\n                    \"product\": \"@bsv/wallet-toolbox-client\",\n                    \"versions\": [\n                        {\n                            \"version\": \">= 1.1.47, < 2.4.0\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"@bsv/wallet-toolbox-mobile","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"bsv-blockchain\",\n                    \"product\": \"@bsv/wallet-toolbox-mobile\",\n                    \"versions\": [\n                        {\n                            \"version\": \">= 1.3.21, < 2.4.0\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"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","score":8.7,"severity":"HIGH"}],"references":["https://github.com/bsv-blockchain/ts-stack/security/advisories/GHSA-36f9-7rg5-cpf8","https://github.com/bsv-blockchain/ts-stack/commit/3a11f6111919245a3090e9f3895cfc4f21a80d28","https://github.com/bsv-blockchain/ts-stack/commit/5492cabbef4ddc7f60cc49cdf5d8c74ed2e5d949","https://github.com/bsv-blockchain/ts-stack/commit/5ee60395e78e8b822d9a78efeacc6039c249819b","https://github.com/bsv-blockchain/wallet-toolbox/commit/ca651b067c0238cd8b1ddd3af225daa503857a07"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-56744","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-56744","identifiers":["CVE-2026-56744"]},"retained":false,"historicalAffected":[]}],"coverage":[]}