CVE-2020-15130

HIGH7.5EPSS 0.24%

False-positive validity for NFT1 genesis transactions in SLPJS

Published: 7/30/2020Modified: 3/13/2026

Description

### Impact In the npm package named "slpjs", versions prior to 0.27.4 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 "slpjs" has been patched and is published and tagged as version 0.27.4. ### Workarounds Upgrade to slpjs 0.27.4. ### References * Package location: https://www.npmjs.com/package/slpjs * SLP NFT1 spec: https://slp.dev/specs/slp-nft-1/#nft1-protocol-requirements * Git commit hash fixing this issue: https://github.com/simpleledger/slpjs/commit/290c20e8bff13ac81459d43e54cac232b5e3456c * 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](https://github.com/simpleledger/slpjs/issues) repository.

Affected packages (1)

CVSS scores

SourceVersionSeverityVector
osvCVSS 3.1HIGH7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

References (3)