MAL-2026-6969 Malicious code in vite-json-pwa (npm)

[email protected] impersonates the legitimate vite-plugin-pwa package (author metadata claims 'inna voik' while funding/homepage point at the real vite-pwa/antfu project) and re-exports its API alongside an added configField(...) middleware factory. When a consumer invokes configField (the expected pattern for a drop-in vite-plugin-pwa replacement), it spawns a detached, stdio-ignored node child running dist/client/dev/reactopt.js. That helper uses axios to GET https://www.jsonkeeper.com/b/J7GQS, extracts a Cookie field from the JSON body, and executes it via new Function('require', s)(require) — arbitrary attacker-controlled Node code with full privileges in the developer/build process tree. The remote URL is disguised inside a fake local process = { env: { DEV_API_KEY: 'https://www.jsonkeeper.com/b/J7GQS',... } } object to make the hardcoded C2 look like an env-var lookup, and the file/export names ('reactopt.js', 'configField') are cover-story identifiers designed to blend into a legitimate-looking build. jsonkeeper.com is a mutable public paste service, so the payload can be swapped at any time. The detached spawn plus stdio: 'ignore' and a retry loop are chosen to hide execution and ensure delivery.

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.