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Malicious package

vite-plugin-opticompressnpm

Advisory published Updated

vite-plugin-opticompress is a confirmed malicious npm package (MAL-2025-48017) that executes malicious code on install (malicious version 1.0.3). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in vite-plugin-opticompress (npm)

MAL-2025-48017
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall vite-plugin-opticompress

What this malware does

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
1.0.3

Indicators of compromise (SHA-256)

2944281b796b865693c16f2bb84aa5a7e7060d92c19fe89079b20f7f4c63ba70
d1f0ef4a4cd37e60617367757475ed6cfebba6c20768694eb1c10f8c3aabf390
87a75205c3c2d49df4b6d1405e4cab5e7d69385c0cef6874342d8bc4a9dc63e5

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for vite-plugin-opticompress (version 1.0.3).

  2. If you installed it — respond

    Remove vite-plugin-opticompress 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 vite-plugin-opticompress 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. vite-plugin-opticompress on npm has been identified as a malicious package (version 1.0.3 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

GHSA-qgcq-rmh6-vrj6RLMA-2025-05554RLUA-2025-05989

References

Credits

  • Amazon Inspector · finder
  • ReversingLabs · finder

Detect & block this

O3 blocks vite-plugin-opticompress-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

vite-plugin-opticompress (npm) malicious package — MAL-2025-48017 | O3 Security