MalwarePublished 19 Oct 2026Updated 29 Oct 2026

codex-setup (npm) · Malicious Code

Affects codex-setupSource GCVE Database

Malicious package : remove codex-setup and rotate any secrets on hosts that installed it.

Data as of 29 Oct 2026, 18:23 UTC

Classification

Malicious package

Published to npm · OSV MAL-2026-18060

What to do

Remove codex-setup 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
npmcodex-setup	Affected 1.0.0 – 1.0.3 4 affected builds	Fixed in–

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Description

The npm package codex-setup versions 1.0.0 through 1.0.3 is identified as malicious software. Installation or execution of this package may lead to full compromise of the affected computer, requiring immediate secret and key rotation from a separate device. Despite one source indicating no suspicious behavior was detected in version 1.0.1, another authoritative source strongly warns that any system with this package should be considered fully compromised.

Impact

Systems with codex-setup versions 1.0.0 to 1.0.3 installed or running are considered fully compromised. Attackers may have gained full control, putting all stored secrets and keys at risk. Immediate secret rotation from a separate device is required. Removal of the package does not guarantee elimination of all malicious software introduced.

Defensive guidance

Remove the codex-setup package immediately from all affected systems. Rotate all secrets and keys stored on the compromised computer from a different, secure device. Due to the potential for full system compromise, further forensic analysis and remediation may be necessary.

Summary

The codex-setup npm package versions 1.0.0, 1.0.1, 1.0.2, and 1.0.3 have been flagged as malicious. While an Amazon Inspector scan of version 1.0.1 found no signs of supply-chain attack or malicious behavior, the GHSA malware advisory states that any system with this package installed or running is fully compromised. The package may grant attackers full control over the system, necessitating immediate removal and rotation of all secrets and keys from a different computer.

References

Community reviews

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What to do

Affected software

Description

AI analysisMachine-generated, updated 29 Oct 2026, 18:23 UTC

Technical details

References

Community reviews