CVE-2020-15131 json
False-positive validity for NFT1 genesis transactions in SLP Validate
published 2020-07-30 6 y ago modified 2026-09-10 1 mo ago also GHSA-6jmr-jfh7-xg3h , EUVD-2020-0540
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.0%
- EPSS 1.0% chance of exploitation in 30 days, percentile 64%
- public exploits
- 0
- none known
Summary
In SLP Validate (npm package slp-validate) before version 1.2.2, there is a vulnerability 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. This is fixed in version 1.2.2.
Patch / fix
- npm slp-validate 1.2.2
- simpleledger slp-validate 1.2.2
Exploit prediction
1.04% chance of exploitation in the next 30 days, higher than 64% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:P/A:N |
| GitHub | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | slp-validate | <1.2.2 |
1.2.2 |
Affected products
- simpleledger slp-validate.js
Classification
- Weakness
-
- CWE-697 Incorrect Comparison
References
-
github.com
/simpleledger/slp-validate.js/commit/3963cf914afae69084059b82483da916d97af65c
web, patch, third-party-advisory
-
github.com
/simpleledger/slp-validate.js/security/advisories/GHSA-6jmr-jfh7-xg3h
web, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2020-15131
advisory
Sources
- CVE List CVE-2020-15131
- GitHub Advisory GHSA-6jmr-jfh7-xg3h
- NVD CVE-2020-15131
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.