MalwarePublished 13 Jul 2026

nottuff16 (npm) · Malicious Code

Affects nottuff16Source GCVE Database

Malicious package : remove nottuff16 and rotate any secrets on hosts that installed it.

Data as of 26 Oct 2026, 15:56 UTC

Classification

Malicious package

Published to npm · OSV MAL-2026-10342

What to do

Remove nottuff16 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
npmnottuff16	Affected =1.1.7 =2.0.0 =1.7.7	Fixed in–

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Description

The npm package 'nottuff16' 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, secure machine. Simply removing the package does not guarantee removal of all malicious components introduced by it.

Impact

Any system with the 'nottuff16' package installed or running should be considered fully compromised. Attackers may have gained full control over the system, risking exposure of all stored secrets and keys. This level of compromise can lead to unauthorized access, data theft, and further malicious activity. The threat undermines system trust and security completely.

Defensive guidance

Remove the 'nottuff16' package immediately. Rotate all secrets and keys from a separate, secure computer to prevent further unauthorized access. Because the system may be fully compromised, consider rebuilding the affected system from a known good backup or reinstalling the operating system to ensure complete removal of malicious components.

Summary

The 'nottuff16' package in the npm ecosystem is identified as malicious. Installation or execution of this package results in a complete compromise of the affected system. The malicious code potentially grants full control to an external attacker. Due to the severity of the compromise, all credentials and secrets stored on the system must be rotated from a different, uncompromised device. Removal of the package alone is insufficient to ensure system integrity, as additional malicious software may persist.

References

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What to do

Affected software

Description

AI analysisMachine-generated, updated 13 Jul 2026, 09:35 UTC

Technical details

References

Community reviews