OpenSSF/OSV advisory MAL-2026-6458 confirms this npm version as malicious. Package is published at version 9999.99.99 with a description referencing an 'npm 404 error referenced in Extra-Chill/homeboy-extensions' — the textbook dependency-confusion shape, where an unclaimed internal package name is registered publicly at a maximal version so private builds silently resolve to this public package. On install, postinstall.js reads npm package metadata, Node/OS info, and CI environment...
Source
OpenSSF Malicious Packages via OSV
Summary
Malicious code in wp-codebox-workspace (npm)
Details
Package is published at version 9999.99.99 with a description referencing an 'npm 404 error referenced in Extra-Chill/homeboy-extensions' — the textbook dependency-confusion shape, where an unclaimed internal package name is registered publicly at a maximal version so private builds silently resolve to this public package. On install, postinstall.js reads npm package metadata, Node/OS info, and CI environment indicators including GITHUB_REPOSITORY, GITHUB_REPOSITORY_OWNER, and GITHUB_WORKFLOW, then POSTs them to https://ddactic-lab.online/sc/beacon. A DNS-lookup fallback encodes the package slug, CI provider, and a hash into a subdomain label under b.ddactic-lab.online, with an in-source comment stating the channel exists to fire 'even through HTTP-blocking corporate proxies' — explicit intent to evade installer egress controls. The combined effect: any private CI build that mistakenly resolves this name leaks the victim organization's private repository, owner, and workflow identifiers to an attacker-controlled host, with a covert DNS fallback for environments that block HTTP.
Decision reason
OpenSSF Malicious Packages via OSV confirms wp-codebox-workspace@9999.99.99 as malicious (MAL-2026-6458): Malicious code in wp-codebox-workspace (npm)