MalwarePublished 13 Jul 2026

nottuff20 (npm) · Malicious Code

Affects nottuff20Source GCVE Database

Malicious package : remove nottuff20 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-2026-10347

What to do

Remove nottuff20 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
npmnottuff20	Affected =1.7.7 =1.1.7 =2.0.0	Fixed in–

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Description

The npm package 'nottuff20' contains malicious code that compromises any computer on which it is installed or running. Installation of this package may result in full system compromise, including unauthorized access to secrets and keys. Removal of the package does not guarantee elimination of all malicious software introduced. Immediate rotation of all secrets and keys from a separate, uncompromised system is strongly advised.

Impact

Full system compromise on any computer with the 'nottuff20' package installed or running. All secrets and keys stored on the system may be exposed to attackers. The integrity and confidentiality of the affected system cannot be assured even after removal of the package.

Defensive guidance

Remove the 'nottuff20' package immediately. Rotate all secrets and keys from a different, uncompromised system to prevent unauthorized access. Because the system may be fully compromised, consider rebuilding or restoring from a known good backup.

Summary

The 'nottuff20' package in the npm ecosystem is identified as malicious software. According to the source details, any system with this package installed should be considered fully compromised. The malicious code may grant attackers full control over the affected system, potentially exposing all stored secrets and keys. Due to the depth of compromise, simply uninstalling the package may not remove all malicious artifacts or backdoors introduced. No CVSS score or detailed technical exploit information is provided.

References

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What to do

Affected software

Description

AI analysisMachine-generated, updated 13 Jul 2026, 09:31 UTC

Technical details

References

Community reviews