Embedded Malicious Code Affecting @asyncapi/specs package, versions =6.11.2-alpha.1=6.11.2


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-JS-ASYNCAPISPECS-17961607
  • published14 Jul 2026
  • disclosed13 Jul 2026
  • creditLidorMachluf

Introduced: 13 Jul 2026

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

How to fix?

Avoid using all malicious instances of the @asyncapi/specs package.

Overview

Affected versions of this package are vulnerable to Embedded Malicious Code that conceals a second-stage obfuscated loader. A malicious actor gained push access to the AsyncAPI generator monorepo's next branch. This allowed the attacker to trigger the project's legitimate CI/CD pipeline to publish tampered versions of several packages to npm with valid OIDC provenance attestations.

CVSS Base Scores

version 4.0
version 3.1