MalwarePublished 29 Jun 2026

hrb-cas-auth-js (npm) · Malicious Code

Affects hrb-cas-auth-jsSource GCVE Database

Malicious package : remove hrb-cas-auth-js and rotate any secrets on hosts that installed it.

Data as of 29 Jun 2026, 22:27 UTC

Classification

Malicious package

Published to npm · OSV MAL-2026-6664

What to do

Remove hrb-cas-auth-js from every project, lockfile and image that pulls it in. Treat any host that installed it as compromised: rotate the credentials, tokens and keys it could read, from a clean machine.

Affected software

Product	Affected	Fixed in
npmhrb-cas-auth-js	Affected–	Fixed in–

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Description

The npm package hrb-cas-auth-js contains malicious code that compromises any computer on which it is installed or running. The presence of this package indicates a full system compromise, requiring immediate rotation of all secrets and keys from a separate, trusted machine. Removal of the package alone does not guarantee elimination of all malicious software introduced by it.

Impact

Full system compromise on any computer with the hrb-cas-auth-js package installed or running. This includes potential unauthorized access to all stored secrets and keys, which must be considered compromised and rotated. The malicious code may have installed additional persistent malware beyond the package itself.

Defensive guidance

Remove the hrb-cas-auth-js package immediately. Rotate all secrets and keys from a different, uncompromised computer. Because the system is fully compromised, consider rebuilding or restoring the affected system from a known good backup to ensure complete removal of malicious software.

Summary

The hrb-cas-auth-js npm package is identified as containing malicious code that, when installed or executed, fully compromises the host system. This compromise potentially grants an attacker complete control over the affected computer. Due to the severity of the compromise, all secrets and keys stored on the system should be rotated immediately from a different, secure device. Simply uninstalling the package is insufficient to ensure removal of all malicious artifacts or backdoors introduced by the package.

References

github.com/advisories/GHSA-fvhw-928m-gxmw (opens in a new tab)

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What to do

Affected software

Description

AI analysisMachine-generated, updated 29 Jun 2026, 22:27 UTC

Technical details

References

Community reviews