MalwarePublished 5 Aug 2026

checkout-total-logic (npm) · Malicious Code

Affects checkout-total-logicSource GCVE Database

Malicious package : remove checkout-total-logic and rotate any secrets on hosts that installed it.

Data as of 5 Aug 2026, 16:11 UTC

Classification

Malicious package

Published to npm · OSV MAL-2026-12598

What to do

Remove checkout-total-logic 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
npmcheckout-total-logic	Affected =35.8.3	Fixed in–

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Description

The npm package 'checkout-total-logic' version 35.8.3 contains malicious code that, upon being required, downloads and executes platform-specific binaries from untrusted external hosts without verification. This behavior enables unauthenticated remote code execution on any developer or CI host that installs and uses the package. The package masquerades as a trivial log transport, hiding its true malicious intent.

Impact

Any developer or continuous integration environment that installs and requires this package version is at risk of remote code execution by an unauthenticated attacker controlling the external hosts. This can lead to full compromise of the affected host, including execution of arbitrary code under the privileges of the user running the Node.js process.

Defensive guidance

Users should immediately avoid installing or requiring 'checkout-total-logic' version 35.8.3. Investigate and remove this package from existing environments. Monitor for suspicious network connections to the identified external hosts. Check vendor advisories or trusted sources for updates or patches before reintroducing the package.

Summary

The 'checkout-total-logic' npm package (version 35.8.3) includes a module (_platform.js) that reconstructs endpoint hostnames from fragmented strings pointing to suspicious external domains. It performs HTTPS GET requests to these domains, downloads platform-specific binaries, saves them to temporary files with decoy names, sets executable permissions on Unix systems, and executes them detached from the main process. There is no hash or signature verification of the downloaded binaries, and the external hosts are unrelated to the package publisher. This results in unauthenticated remote code execution on any system that installs and requires this package.

References

npmjs.com/package/checkout-total-logic/v/35.8.3 (opens in a new tab)

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What to do

Affected software

Description

AI analysisMachine-generated, updated 5 Aug 2026, 16:11 UTC

Technical details

References

Community reviews