Which versions of wallet-adapter-base are malicious?

The following npm versions of wallet-adapter-base are flagged malicious: 1.0.0. Treat any of these as compromised.

How do I remediate wallet-adapter-base if I installed it?

wallet-adapter-base is built to steal secrets, so assume every credential the build or runtime could read is compromised. Remove it from your project and lockfile, then rotate ALL exposed secrets — npm/registry tokens, cloud keys, CI/CD secrets, SSH keys, and any .env values — from a known-clean machine. Audit logs for unauthorized use of those credentials.

I already installed wallet-adapter-base — how do I know if it already compromised me?

If wallet-adapter-base was installed, its post-install payload may already have run. Removing the package does not undo that — check outbound connections and credential use from the install window onward.

Is wallet-adapter-base part of a known attack campaign?

Yes — wallet-adapter-base is associated with the GHSA-9h7q-53gw-grwc campaign. Packages in the same campaign often share infrastructure and payloads, so check whether any related packages are also in your dependency tree.

How do I find wallet-adapter-base across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for wallet-adapter-base (version 1.0.0).

Malicious package

wallet-adapter-basenpm

Advisory published Nov 1, 2026Updated Nov 2, 2026

wallet-adapter-base is a confirmed malicious npm package (MAL-2026-18459) that steals credentials and exfiltrates sensitive data (malicious version 1.0.0). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in wallet-adapter-base (npm)

MAL-2026-18459

Immediate action

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

npm uninstall wallet-adapter-base

What this malware does

wallet-adapter-base takes the unscoped name of @solana/wallet-adapter-base and has no functional code. Its preinstall script runs node preinstall.js on npm install, which POSTs the machine's hostname, the OS username and the local time to the Discord webhook https://canary.discord.com/api/webhooks/1566232728179843243/pM5rDIrCRrEpQRbA7ibaiQk1XOQlIftmBacA5s8jD8NvXn5W-rS832DOWHQS-G-j3N6U as "PC Notifier". It was published by the npm account cutekitten05, which published axelarjs-sdk, cutekitten-test, bigbob22-test and sol-wallet-adapter with the same script on 2026-11-01.

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.

Malicious versions

1 flagged

1.0.0

Indicators of compromise (SHA-256)

bde7babd223d526922c03a77b46c3cb5a7ee7e05027dd66e3f630520ad6c53ab

Detection & response playbook

Credential / info stealer

Find it
Search your lockfiles and build artifacts for wallet-adapter-base (version 1.0.0).
If you installed it — respond
wallet-adapter-base is built to steal secrets, so assume every credential the build or runtime could read is compromised. Remove it from your project and lockfile, then rotate ALL exposed secrets — npm/registry tokens, cloud keys, CI/CD secrets, SSH keys, and any .env values — from a known-clean machine. Audit logs for unauthorized use of those credentials.
Did it already run?
If wallet-adapter-base was installed, its post-install payload may already have run. Removing the package does not undo that — check outbound connections and credential use from the install window onward.

Frequently asked questions

No. wallet-adapter-base 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.

Campaign

GHSA-9h7q-53gw-grwc

References

Credits

InvisiRisk, Inc. · finder

Detect & block this

O3 blocks wallet-adapter-base-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.

Malware detection Runtime egress monitoring

Explore

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