MalwarePublished 29 Jun 2026Updated 20 Jul 2026

cmp-api-stub (npm) · Malicious Code

Affects cmp-api-stubSource GCVE Database

Malicious package : remove cmp-api-stub and rotate any secrets on hosts that installed it.

Data as of 26 Oct 2026, 15:55 UTC

Classification

Malicious package

Published to npm · OSV MAL-2026-6662

What to do

Remove cmp-api-stub 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
npmcmp-api-stub	Affected =99.9.1	Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

Description

The npm package 'cmp-api-stub' contains malicious code that compromises any computer on which it is installed or running. Installation of this package may lead to full system compromise, including unauthorized access to secrets and keys stored on the affected machine. Removal of the package alone may not fully eliminate the malicious presence, as the attacker could have established persistent control.

Impact

Full system compromise on any computer with the 'cmp-api-stub' package installed or running. All secrets and keys stored on the compromised machine are at risk and should be considered exposed. The attacker may maintain persistent access beyond the presence of the package itself.

Defensive guidance

Remove the 'cmp-api-stub' package immediately. Rotate all secrets and keys from a different, secure computer to prevent unauthorized access. Because the system may be fully compromised, consider a full system rebuild or forensic analysis to ensure complete removal of malicious components.

Summary

The 'cmp-api-stub' npm package is identified as malicious software. According to the source details, any system with this package installed should be considered fully compromised. Attackers may have gained full control over the affected computer, potentially accessing all stored secrets and keys. Immediate rotation of all credentials from a separate, secure machine is recommended. The package removal is advised but may not guarantee complete eradication of the malicious software introduced by the package.

References

github.com/advisories/GHSA-q9xg-g7r9-mqrx (opens in a new tab)

Community reviews

Loading reviews…

What to do

Affected software

Description

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

Technical details

References

Community reviews