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Malicious package

@spx-delivery/reactnpm

Malicious code in @spx-delivery/react (npm) Remove it immediately and rotate any exposed credentials.

MAL-2026-261
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall @spx-delivery/react

What this malware does

The package @spx-delivery/react 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
0.0.10.0.1-security99.99.9

Indicators of compromise (SHA-256)

b03f32e2859ef16f71897fc985589e436c704979df087b57bb61fedb63e89c51
4c3aa1b060dff87d257c88e0db2903a7c1c6e618460a5a5e93c68eaac59a9645
81f515c184c8adb38d36334b51d2e0f38c1c1e839bf927858e34900125ffec2f

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 @spx-delivery/react (3 malicious versions). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging @spx-delivery/react across your stack and pipelines.

  2. If you installed it — respond

    Remove @spx-delivery/react 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 @spx-delivery/react 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 @spx-delivery/react 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. @spx-delivery/react on npm has been identified as a malicious package (versions 0.0.1, 0.0.1-security, 99.99.9 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

GHSA-vwcv-3mcr-rq5qRLMA-2026-01061

References

Credits

  • Amazon Inspector · finder
  • ReversingLabs · finder

Detect & block this

O3 blocks @spx-delivery/react-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.

@spx-delivery/react (npm) malicious package — MAL-2026-261 | O3 Security