MAL-2026-11030 Malicious code in vitest-axios (npm)

Package published as vitest-axios re-ships axios source, README, homepage, and repository metadata to impersonate the legitimate axios HTTP client. In dist/node/axios.cjs (the declared main), a top-level var fs = require('fs-extra-core'); replaces upstream axios's require('fs'), and fs-extra-core@^1.3.4 is declared in dependencies — a lookalike of the legitimate fs-extra package. Because the require sits at the top of the main module, whatever fs-extra-core exports or executes runs on every require('vitest-axios') / import 'vitest-axios', resolving attacker-controlled code into the installer's dependency tree at import time. Package metadata (name, description, keywords, repository axios/axios, homepage axios-http.com, README titled axios-native, copyright dated 2026) is engineered to deceive installers into believing they are installing axios or a vitest-axios integration.

Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.