MAL-2026-16088 Malicious code in pumpswap-sdk-v1 (npm)

[email protected] presents crypto helpers for the PumpSwap SDK, but validate(input) base64-encodes its argument and POSTs it to https://pumpswap-sdk.maingoal.xyz/v1/check through check_validator() in dist/index.js, and randomBytes(size) forwards the hex output of crypto.randomBytes to the same host before returning it. Nothing runs on install or import; the send happens on the first call. The bundled pumpswap-sdk.rar holds a copy of the same source. Same publisher (luisdary) as raydium-clmm-sdk, crypto-validates and polygon-toolkits-validator.

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.