What does the @solana-labs/web3-js malware do?

The OpenSSF Package Analysis project identified '@solana-labs/web3-js' @ 1.0.0 (npm) as malicious. It is considered malicious because: - The package communicates with a domain associated with malicious activity. - The package executes one or more commands associated with malicious behavior.

Which versions of @solana-labs/web3-js are malicious?

The following npm versions of @solana-labs/web3-js are flagged malicious: 1.0.0. Treat any of these as compromised.

How do I remediate @solana-labs/web3-js if I installed it?

Remove @solana-labs/web3-js from your project and lockfile, then assume any secrets accessible to the build or runtime were exposed: rotate API keys, tokens, and credentials, and audit for unexpected outbound network activity or persistence. Use O3 Security's dependency scanner to confirm the package and its artifacts are fully purged across your stack.

Can O3 Security detect @solana-labs/web3-js in my codebase?

Yes. O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, blocking @solana-labs/web3-js and packages like it before any post-install script runs.

Malicious package

@solana-labs/web3-jsnpm

Malicious code in @solana-labs/web3-js (npm) Remove it immediately and rotate any exposed credentials.

MAL-2026-5363

Immediate action

Remove the package, then rotate any secrets the build/runtime could reach.

npm uninstall @solana-labs/web3-js

What this malware does

The OpenSSF Package Analysis project identified '@solana-labs/web3-js' @ 1.0.0 (npm) as malicious.

It is considered malicious because:

The package communicates with a domain associated with malicious activity.
The package executes one or more commands associated with malicious behavior.

Malicious versions

1 flagged

1.0.0

Indicators of compromise (SHA-256)

99d2ea7302fd72532bbe21dd885a0c456599e7fb1e8055977e35ae563236e530

Frequently asked questions

No. @solana-labs/web3-js on npm has been identified as a malicious package (version 1.0.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Credits

OpenSSF: Package Analysis · finder

Scan your dependencies

O3 Security blocks malicious packages like this at install time and in CI.

Supply-chain protection