# \`@bsv/wallet-toolbox\` / \`-client\` / \`-mobile\` don't verify storage-supplied recipient output scripts against caller-requested outputs in createAction

Advisory record · `GHSA-36f9-7rg5-cpf8`

- **Identifiers:** `GHSA-36f9-7rg5-cpf8` · `CVE-2026-56744`
- **State:** Confirmed
- **Severity:** CVSS 8.7 High
- **Critical:** No
- **Weakness (CWE):** [CWE-1288](https://cwe.mitre.org/data/definitions/1288.html)
- **Tags:** [CWE-1288](https://agentprime.io/advisories/tag/cwe-1288.md)
- **Published:** 24 Sept 2026
- **Updated:** 24 Sept 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 24 Sept 2026, 19:32 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `@bsv/wallet-toolbox` (npm): affected `>=1.1.47, <2.4.0`; fixed in `2.4.0`
- `@bsv/wallet-toolbox-client` (npm): affected `>=1.1.47, <2.4.0`; fixed in `2.4.0`
- `@bsv/wallet-toolbox-mobile` (npm): affected `>=1.3.21, <2.4.0`; fixed in `2.4.0`

## Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

## Severity and exploitation

- 8.7 High, CVSS 4.0: `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`, from CNA (GitHub_M)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0038, the 32nd percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

This record came from the full history of the GitHub Advisory Database, published 24 Sept 2026. New records show when each source confirmed them.

## Sources

- [GitHub Advisory Database: GHSA-36f9-7rg5-cpf8](https://github.com/advisories/GHSA-36f9-7rg5-cpf8)
- [OSV: GHSA-36f9-7rg5-cpf8](https://osv.dev/vulnerability/GHSA-36f9-7rg5-cpf8)
- <https://github.com/bsv-blockchain/ts-stack/security/advisories/GHSA-36f9-7rg5-cpf8>
- <https://nvd.nist.gov/vuln/detail/CVE-2026-56744>
- <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>
- <https://github.com/bsv-blockchain/ts-stack>

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.

## Check whether this affects you

A Match means an installed version is in the affected range above. Most don’t affect the app; agentprime hasn’t analysed this one yet.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), ask your agent to check the project: `check_lockfile` sends a lockfile, `check_packages` a list of installed packages, and both return the Matches and the upgrades that clear them. `get_advisory` returns this record. Setup: <https://agentprime.io/mcp.md>
- In a browser: <https://agentprime.io/check/> reads your lockfile in the browser, never uploading it.
- Whether it touches your code, with file and line: the Claude Code plugin, <https://agentprime.io/plugin.md>
- As JSON: <https://api.agentprime.io/v1/advisories/GHSA-36f9-7rg5-cpf8>, or `POST https://api.agentprime.io/v1/match` with your packages (<https://agentprime.io/api.md>)

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The web page: <https://agentprime.io/advisories/GHSA-36f9-7rg5-cpf8/>. Everything for agents: <https://agentprime.io/llms.txt>.