Embedded Malicious Code Affecting intercom/intercom-php package, versions =5.0.2


Severity

Recommended
0.0
critical
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Attacked

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  • Snyk IDSNYK-PHP-INTERCOMINTERCOMPHP-16329836
  • published1 May 2026
  • disclosed29 Apr 2026
  • creditPeter van der Zee

Introduced: 29 Apr 2026

New Malicious CVE NOT AVAILABLE CWE-506  (opens in a new tab)

How to fix?

Avoid using all malicious instances of the intercom/intercom-php package.

Overview

intercom/intercom-php is an Intercom API client.

Affected versions of this package are vulnerable to Embedded Malicious Code that conceals a credential-stealing payload. A malicious actor compromised the package, enabling the attacker to publish tampered versions of the deep learning framework.

Malicious Behavior

The execution chain runs automatically on module import through a daemon thread with suppressed output. A preinstall script is added that downloads the Bun JavaScript runtime from GitHub to execute an 11 MB obfuscated JavaScript payload (router_runtime.js). The malware actively steals and exfiltrates developer tokens, environment variables, and cloud-related secrets.

CVSS Base Scores

version 4.0
version 3.1