tailwind-animation-founder
This report shows the evidence for tailwind-animation-founder@2.5.7, the only known version.
OpenSSF/OSV Malicious Advisory
imported 3mo ago · by OpenSSF/OSVOpenSSF/OSV advisory MAL-2026-12218 confirms this npm version as malicious.
Advisory
MAL-2026-12218
Source
OpenSSF Malicious Packages via OSV
Summary
Malicious code in tailwind-animation-founder (npm)
Details
The package publishes as 'tailwind-animation-founder' while its README, homepage, and npm badges point to a differently-named upstream ('tailwindcss-animationfound'), indicating a typosquat identity. src/index.js appends an obfuscated IIFE after a legitimate-looking Tailwind plugin export. The trailing block pulls http, https, and child_process.spawn into globals, uses a length-based string-shuffle routine to reconstruct the identifier 'constructor', instantiates a Function from a shuffle-decoded source blob, and immediately invokes it. The executable payload is only readable after runtime decoding, so the plugin performs opaque code execution the moment a build tool runs require('tailwind-animation-founder'). The combination of obfuscation, networking primitives (http/https), process-spawn capability, and Function-constructor evaluation on the main entry is the shape of a dropper/stealer, not a Tailwind utility plugin.
References
Independent scan evidence
public snapshotBehavioral surface
ChildProcessDynamicRequireNetwork
HighEntropyStrings
Source & flagged code
1 flagged · loading sourcesrc/compat/theme.jsView file
1const { getBareMilliseconds, getBareIntegers } = require('./helper/bare-values')
L2:
Medium
Dynamic Require
Package source references dynamic require/import behavior.
src/compat/theme.jsView on unpkg · L1Findings
2 Medium2 Low
MediumDynamic Requiresrc/compat/theme.js
MediumNetwork
LowScripts Present
LowHigh Entropy Strings
Affected versions and remediation
This report applies to tailwind-animation-founder@2.5.7.
The versions list below shows the verdict for each recorded version.
- Avoid installing tailwind-animation-founder@2.5.7. 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: .
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