MalwarePublished 7 Aug 2026

devplatform-eslint-config (npm) · Malicious Code

Affects devplatform-eslint-configSource GCVE Database

Malicious package : remove devplatform-eslint-config and rotate any secrets on hosts that installed it.

Data as of 7 Aug 2026, 15:39 UTC

Classification

Malicious package

Published to npm · OSV MAL-2026-13544

What to do

Remove devplatform-eslint-config 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
npmdevplatform-eslint-config	Affected =35.8.9	Fixed in–

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Description

The npm package devplatform-eslint-config version 35.8.9 is a malicious package that does not provide ESLint configuration as its name suggests. Instead, it loads a native binary payload specific to the operating system and architecture by fetching it from dynamically assembled Cloudflare Workers hosts, with a DNS-TXT covert channel fallback. The payload is saved with a decoy filename, made executable, and run as a detached child process. This behavior is hidden by runtime string assembly to evade static analysis, and the package identity is a cover story unrelated to the actual malicious code.

Impact

The package executes an unknown native binary payload on the host system without user consent, potentially allowing arbitrary code execution. This can lead to system compromise, data theft, or further malware deployment. Because the payload is fetched dynamically and executed detached from the parent process, it can evade detection and persist on the system. The use of covert DNS-TXT channels and runtime string assembly complicates detection and analysis.

Defensive guidance

Users should immediately remove devplatform-eslint-config@35.8.9 from their projects and avoid installing or using this package. Employing package integrity verification and using trusted sources for dependencies can help prevent such malicious package usage. Monitor for any unusual child processes spawned by development tools.

Summary

The devplatform-eslint-config@35.8.9 npm package masquerades as an ESLint configuration but contains malicious code that fetches and executes an opaque native binary payload tailored to the host OS and architecture. The payload is retrieved from a set of Cloudflare Workers hosts whose domain names are dynamically constructed at runtime, with a fallback mechanism using DNS-TXT records from specific domains to reassemble base64-encoded payload chunks. The binary is written to a temporary file with a decoy name, permissions set to executable, and launched as a detached process using platform-specific commands. The package includes duplicate code for this fetch-write-execute cycle in telemetry.js. This runtime assembly of command and hostnames is designed to evade static detection. The package’s ESLint configuration identity is a deceptive cover to disguise its true purpose.

References

npmjs.com/package/devplatform-eslint-config/v/35.8.9 (opens in a new tab)

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What to do

Affected software

Description

AI analysisMachine-generated, updated 7 Aug 2026, 15:39 UTC

Technical details

References

Community reviews