tailwindcss-fluid-styles
This report shows the evidence for tailwindcss-fluid-styles@2.0.7, the only known version.
This package appears in our research on the fake Tailwind CSS plugins, with how it works, the full package list and what to do if you installed it.
OpenSSF/OSV Malicious Advisory
imported 2mo ago · by OpenSSF/OSVOpenSSF/OSV advisory MAL-2026-15826 confirms this npm version as malicious.
Advisory
MAL-2026-15826
Source
OpenSSF Malicious Packages via OSV
Summary
Malicious code in tailwindcss-fluid-styles (npm)
Details
src/index.js executes an eval(atob(...)) blob at top level on require(). The decoded loader queries Ethereum RPC endpoints for the latest transaction from the hardcoded address 0xa322E5f3D311D3080e6f0121063e9aDC2490Ef1a and decodes that transaction's `to` field into two IPv4 addresses used as C2 hosts. It fetches XOR-encrypted payloads from paths /0x/cls and /0x/ls on those hosts, eval()s the first, and spawns `node -e <payload>` with `{detached:true, stdio:'ignore', windowsHide:true}` and.unref() to run the second as a persistent hidden background process on the installer's host. Immediately after execution the module reads its own source, locates the eval(atob("Z2x...")) region and rewrites __filename on disk to remove it, leaving a benign-looking tailwind plugin after first import. The package presents itself as a Tailwind CSS fluid-styles plugin; the attacker-controlled code, blockchain-based C2 resolution, self-erasing loader and detached implant have no relationship to that stated purpose.
References
Source & flagged code
0 flaggedNo flagged code excerpts are attached to this scan.
Findings
1 High
HighOsv Malicious Advisory
Affected versions and remediation
This report applies to tailwindcss-fluid-styles@2.0.7.
The versions list below shows the verdict for each recorded version.
- Avoid installing tailwindcss-fluid-styles@2.0.7. Remove it from direct dependencies and check your lockfile for transitive copies.
- Choose an independently verified alternative or release. This report does not establish that other versions are safe.
- If this version ran, investigate the affected machine and build environment. Rotate credentials it could access and rebuild from a trusted environment.
Evidence last updated: .
Source advisory published: .
This report uses published external intelligence. The advisory does not provide a separate source-code analysis for each listed version.
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