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Malicious package

@metaplex-foundations/umi-public-keysnpm

Malicious code in @metaplex-foundations/umi-public-keys (npm) Remove it immediately and rotate any exposed credentials.

MAL-2026-1938
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall @metaplex-foundations/umi-public-keys

What this malware does

The package @metaplex-foundations/umi-public-keys was found to contain malicious code.

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

3 flagged
1.5.21.5.31.5.4

Indicators of compromise (SHA-256)

9982c0470fd6d6f9eaf119b02eda7adf1ff794f468c405eee641cd6181b44f38
48abfc0f902cd0f09b0c2ae7449eaefbf3b4baf1cb12e4165f509b86f7ad8692
a5dbaa56af2414d091e9969a0353a9467fdfc7e710a01d5f80d8f8aa953d7e8f
0788559fb85a6e7f83d0efeb850e229c03e29e3e83681a5d6107ef223aa07316

Detection & response playbook

Malicious package
  1. Find it

    Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for @metaplex-foundations/umi-public-keys (3 malicious versions). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging @metaplex-foundations/umi-public-keys across your stack and pipelines.

  2. If you installed it — respond

    Remove @metaplex-foundations/umi-public-keys 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 activity or persistence.

  3. Did it already run?

    If @metaplex-foundations/umi-public-keys was ever installed, its post-install/runtime payload may have already executed. O3's L7 egress monitoring and runtime eBPF sensors detect the credential exfiltration or command-and-control callback after install and block the malicious outbound channel, so you catch and contain the actual compromise — not just the presence of the package.

  4. How O3 protects you

    O3 blocks @metaplex-foundations/umi-public-keys before install through its supply-chain scanner, and if it has already run, detects and severs the exfiltration or C2 callback at runtime through L7 egress monitoring and eBPF.

Frequently asked questions

No. @metaplex-foundations/umi-public-keys on npm has been identified as a malicious package (versions 1.5.2, 1.5.3, 1.5.4 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

GHSA-2rjv-fxjc-xwmvRLMA-2026-01704RLUA-2026-01859

References

Credits

  • Amazon Inspector · finder
  • ReversingLabs · finder

Detect & block this

O3 blocks @metaplex-foundations/umi-public-keys-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the malicious outbound activity and severs the channel.

@metaplex-foundations/umi-public-keys (npm) malicious package — MAL-2026-1938 | O3 Security