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Malicious package

eslint-plugin-dagster-rulesnpm

Advisory published Updated

eslint-plugin-dagster-rules is a confirmed malicious npm package (MAL-2026-7281) that executes malicious code on install (malicious versions 1000.0.0, 1000.0.2, 1000.0.7). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in eslint-plugin-dagster-rules (npm)

MAL-2026-7281
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall eslint-plugin-dagster-rules

Malicious versions

3 flagged
1000.0.01000.0.21000.0.7

Indicators of compromise (SHA-256)

d609cfb7a513d4b15f7e6df298f463bf6ddedbd08c79872651685ba06b6f045c
33e51a06dd63d431b9b291781dad93b5699f934d14c957ec5fa2400fec6bda78

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for eslint-plugin-dagster-rules (3 malicious versions).

  2. If you installed it — respond

    Remove eslint-plugin-dagster-rules 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 eslint-plugin-dagster-rules 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. eslint-plugin-dagster-rules on npm has been identified as a malicious package (versions 1000.0.0, 1000.0.2, 1000.0.7 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2026-05074RLUA-2026-06215

References

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks eslint-plugin-dagster-rules-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.

Explore

eslint-plugin-dagster-rules (npm) malicious package — MAL-2026-7281 | O3 Security