False-positive validity for NFT1 genesis transactions
Impact
In the npm package named "slp-validate", versions prior to 1.2.2 are vulnerable to false-positive validation outcomes for the NFT1 Child Genesis transaction type. A poorly implemented SLP wallet or opportunistic attacker could create a seemingly valid NFT1 child token without burning any of the NFT1 Group token type as is required by the NFT1 specification.
Patches
npm package "slp-validate" has been patched and is published and tagged as version 1.2.2.
Workarounds
Upgrade to slp-validate 1.2.2.
References
- Package location: https://www.npmjs.com/package/slp-validate
- SLP NFT1 spec: https://slp.dev/specs/slp-nft-1/#nft1-protocol-requirements
- Git commit hash fixing this issue: https://github.com/simpleledger/slp-validate.js/commit/3963cf914afae69084059b82483da916d97af65c
- Unit tests have been added to assist validator implementations in avoiding this bug: https://github.com/simpleledger/slp-unit-test-data/commit/8c942eacfae12686dcf1f3366321445a4fba73e7
For more information
If you have any questions or comments about this advisory please open an issue in the slp-validate repository.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | slp-validate | < 1.2.2 | 1.2.2 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N- Weakness (CWE)
CWE-697- Platform
- npm
- Package
slp-validate- Disclosed
- 30.07.2020
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-6jmr-jfh7-xg3h - CC BY 4.0
Vulnerability history: slp-validate
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 3
- First → latest
- 11.2019 07.2020
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 3
Disclosures per year
- 2019: 1
- 2020: 2
- 2021: 0
- 2022: 0
- 2023: 0
- 2024: 0
- 2025: 0
- 2026: 0
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False-positive validity for NFT1 genesis transactions this entry
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