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OpenAdvisories
Malicious MAL-2026-10088

lovable-tager

npm package · versions 1.4.0, 1.4.1

Reported Jul 9, 2026 · Updated Jul 9, 2026

If this package is installed

Remove it, treat the machine (or CI runner) as compromised, and rotate every secret, token and key it could access — from a different, clean machine.

Details

Source: amazon-inspector (0f100c9dbac6f2e352e559d0eb06f573e971845cc083b80c61f211013e03973a)
`lovable-tager` is a single-character-deletion typosquat of the legitimate Vite plugin `lovable-tagger`. The ESM entry `dist/index.js` (referenced by `main`) contains the clean plugin code followed by ~6 KB of tab padding and then an appended obfuscator.io-style permutation-obfuscated IIFE. On module load, the IIFE assigns `global.require`, `global.__dirname`, and `global.__filename`, derives `Function` via a deshuffled `constructor` lookup, constructs a new Function from an obfuscated string body, and immediately invokes it. The sibling CJS build `dist/index.cjs`, produced from the same source, contains only the clean plugin code with no such trailer — indicating the payload was smuggled into the published tarball after the normal build ran, hidden behind tab padding that suppresses it in most editors and diff views. Any project that adds the mistyped name to its Vite config executes attacker-controlled code inside the developer's Node process at plugin-load time, with the ability to reach `require`, the filesystem, and the network of the build host.