MalwarePublished 6 Jul 2026Updated 1 Sep 2026

prettier-logger (npm) · Malicious Code

Affects prettier-loggerSource GCVE Database

Malicious package : remove prettier-logger and rotate any secrets on hosts that installed it.

Data as of 12 Sep 2026, 20:46 UTC

Classification

Malicious package

Published to npm · OSV MAL-2026-6866

What to do

Remove prettier-logger 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
npmprettier-logger	Affected =0.1.6 =0.1.5 =0.1.4	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 'prettier-logger' versions 0.1.4, 0.1.5, and 0.1.6 contains malicious code. Any system with this package installed or running is considered fully compromised. Secrets and keys stored on affected systems should be rotated immediately from a different, trusted machine. Removing the package alone may not eliminate all malicious software introduced by it.

Impact

Systems with the affected versions of 'prettier-logger' installed or running are fully compromised. Attackers may have gained complete control over the system, risking exposure and theft of secrets, keys, and other sensitive data. The compromise is severe enough that remediation requires credential rotation from a different machine and cannot rely solely on package removal.

Defensive guidance

Remove the 'prettier-logger' package immediately. Rotate all secrets and keys stored on the compromised system from a separate, trusted machine. Because the system is considered fully compromised, additional forensic analysis and remediation may be necessary to ensure all malicious components are removed.

Summary

The 'prettier-logger' npm package versions 0.1.4, 0.1.5, and 0.1.6 have been identified as containing malicious code. Installation or execution of this package results in a full compromise of the affected computer, potentially allowing an attacker to gain complete control. Due to the severity of the compromise, all sensitive credentials on the affected system should be rotated from a secure environment. The package removal does not guarantee the eradication of all malicious artifacts introduced.

References

Community reviews

Loading reviews…

What to do

Affected software

Description

AI analysisMachine-generated, updated 12 Sep 2026, 20:46 UTC

Technical details

References

Community reviews