cnvd-2019-42437

EUVD-2026-57929

fkie_cve-2019-16762

A specially crafted Bitcoin script can cause a discrepancy between the specified SLP consensus rules and the validation result of the slpjs npm package. An attacker could create a specially crafted Bitcoin script in order to cause a hard-fork from the SLP consensus. Affected users can upgrade to any version >= 0.21.4.

GHSA-425c-ccf3-3jrr — Critical severity vulnerability that affects slpjs

Affected: npm: slpjs

## Validator parsing discrepancy due to string encoding

### Impact A specially crafted Bitcoin script can cause a discrepancy between the specified SLP consensus rules and the validation result of the slpjs npm package. An attacker could create a specially crafted Bitcoin script in order to cause a hard-fork from the SLP consensus.

### Patches All versions > 0.21.3 are patched.

### Workarounds Upgrade to any version >= 0.21.4.

### References The bug was located and fixed [here](https://github.com/simpleledger/slpjs/commit/ac8809b42e47790a6f0205991b36f2699ed10c84#diff-fe58606994c412ba56a65141a7aa4a62L701).

### For more information If you have any questions or comments about this advisory: * Open an issue in the [slpjs repo](https://github.com/simpleledger/slpjs/issues) * Email us at [info@slp.cash](mailto:info@slp.cash)

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