Validator parsing discrepancy due to string encoding in NPM slpjs
Priority LOW 29CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub.
Summary
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.
Why it matters now
EPSS 0.01096 65th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed slpjs (simpleledger): 0.21.4slpjs (npm): 0.21.4
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| simpleledger | slpjs | < 0.21.4 to before 0.21.4 | 0.21.4 | Patch available | CNA |
| — | slpjs (npm) | before 0.21.4 | 0.21.4 | Patch available | GHSA-425c-ccf3-3jrr |
- slpjs Vendorsimpleledger Affected < 0.21.4 to before 0.21.4 Fixed in 0.21.4 Patch available CNA
- slpjs (npm) Vendor— Affected before 0.21.4 Fixed in 0.21.4 Patch available GHSA-425c-ccf3-3jrr
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:simpleledger:slpjs:*:*:*:*:*:node.js:*:* | before 0.21.4 | Vulnerable | simpleledger |
- cpe:2.3:a:simpleledger:slpjs:*:*:*:*:*:node.js:*:* Versions before 0.21.4 Vulnerable ·simpleledger
Remediation
- Fix · CNA slpjs (simpleledger) Fixed in 0.21.4
- Fix · GHSA-425c-ccf3-3jrr slpjs (npm) Fixed in 0.21.4 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2019-16762
- 2026-10-03 Alias added: GHSA-425c-ccf3-3jrr
References
More simpleledger Slpjs vulnerabilities
- TI-2020-08945 False-negative validation results in MINT transactions with invalid baton CVSS 3.1HIGH 8.6
- TI-2020-11903 False-positive validity for NFT1 genesis transactions in SLPJS CVSS 3.1HIGH 7.5
Sources
- CVE-2019-16762 · CVE Program
- CVE-2019-16762 · NVD
- FIRST EPSS
- GHSA-425c-ccf3-3jrr · GitHub Advisory Database · CC BY 4.0
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