🛡️ MAL-2026-10630 — chai-as-byte

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

Description

Malicious code in chai-as-byte (npm)

Source: amazon-inspector

On require of the package's main entry, index.js detaches a child process that runs lib/initializeCaller.js. That script posts the caller's entire process.env to a base64-obfuscated URL (decoded destination: https://ipcheck-hashed.vercel.app/api/auth/6c1d60d35852ef0c05df) using axios, then passes the response body to new Function('require', response.data) and invokes it with the module require — giving the remote endpoint arbitrary code execution on the installer's host with full module access. The package name mimics the chai-as-* family while its metadata advertises a JSON logger, and neither role is implemented in the shipped code; the main entry silently spawns the exfil/RCE task instead of exposing any library API. The bulk-environment upload captures CI secrets, cloud tokens, and API keys that live in process.env in typical build environments.

Affected software

MAL-2026-10630 is recorded against 1 package.

  • chai-as-byte

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)
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
chai-as-byte — —

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