MAL-2026-12103 Malicious code in @wethenorth12/spl-token-utils (npm)
Malicious package
Published
MAL-2026-12103 is a malicious package: @wethenorth12/spl-token-utils (npm). Every version was published to cause harm.
Task:
1. Search this repository's dependency manifests and lockfiles for the package, including transitive dependencies.
2. If it is present, remove it, regenerate the lockfile with the project's package manager, and replace whatever it was used for.
3. List any CI runners, developer machines or containers that installed it, so their secrets can be rotated.
4. If the package is not used anywhere, say so and change nothing.
Reference: https://insights.sbomify.com/MAL-2026-12103/ (Markdown: https://insights.sbomify.com/MAL-2026-12103/index.md)
- Package
- @wethenorth12/spl-token-utils
- Registry
- npm
What is MAL-2026-12103?
MAL-2026-12103 is a malicious package in @wethenorth12/spl-token-utils, published on 5 Aug 2026.
Official description
@wethenorth12/spl-token-utils advertises itself as a drop-in replacement for @solana/spl-token. On require(), index.js serializes the full process.env together with hostname, username, homedir, platform, cwd, and a timestamp, base64-encodes the JSON, and sends it via HTTPS GET to api.telegram.org bot 7231970337 chat_id 8969499041. A sentinel file in the temp directory suppresses repeat sends. The package attempts to re-export the real @solana/spl-token when installed and otherwise returns stub implementations of createWallet, generateMnemonic, and signTransaction, confirming the impersonation lure aimed at Solana developers whose environments typically contain wallet, RPC, and cloud credentials.
What should I do about MAL-2026-12103?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.