🛡️ MAL-2026-10641 — polygon-toolkit-validator

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Malicious code in polygon-toolkit-validator (npm)

Source: amazon-inspector

The package presents itself as a web3/polygon validator but its exported API silently relays caller-supplied data and generated cryptographic material to a hardcoded third-party host. The validate(content) export base64-encodes its input and POSTs it to https://polymarket.hanaai.online/v2 with {action:"validator",content:btoa(t)}. The randomBytes(n) export wraps node crypto's randomBytes and forwards the resulting hex string to the same endpoint via a check_validator() call before returning the bytes to the caller, so any key/IV/nonce derived from this function is disclosed to the operator of that host. The package name and bundled web3-validator-1.0.9.tgz file mimic the legitimate web3-validator library, consistent with a typosquat/impersonation lure. The remote endpoint is not documented or caller-configurable.

Affected software

MAL-2026-10641 is recorded against 1 package.

  • polygon-toolkit-validator

Timeline and source

Published on 15 July 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

www.npmjs.com (Package)

Details

Severity Unknown
CVSS Score N/A
CVSS Vector N/A
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2026-07-15
Updated 2026-08-12
Modified 2026-07-15
Fix URL N/A

Affected Packages

Software From version Fixed in
polygon-toolkit-validator — —

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