MAL-2026-6925 Malicious code in typescript-base58 (npm)

[email protected] is a one-line re-export of the 'base58-core' package. The README advertises 'Zero dependencies' while package.json declares a runtime dependency on base58-core (^1.0.0), so installing this package silently introduces base58-core into the installer's dependency tree under a misleading description. The shim itself performs no install-time or import-time actions beyond the re-export; it contains no lifecycle scripts, no network calls, no credential reads, and no obfuscation. The installer-side risk is entirely contingent on the contents of base58-core, which is not analyzed in this record.

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.