registry / Malware / tailwind-keyframes

tailwind-keyframes

A configurable, namespaced Animate.css integration for Tailwind CSS

This report shows the evidence for tailwind-keyframes@2.0.6, the only known version.

OpenSSF/OSV Malicious Advisory

imported 3d ago · by OpenSSF/OSV

OpenSSF/OSV advisory MAL-2026-18083 confirms this npm version as malicious.

Advisory

MAL-2026-18083

Source

OpenSSF Malicious Packages via OSV

Summary

Malicious code in tailwind-keyframes (npm)

Details

tailwind-keyframes (2.0.6) is a Tailwind CSS plugin from the fake job interview campaign behind MAL-2026-17665 and MAL-2026-17666: the same Animate.css integration template, README and description, published by adriannamrr on 2026-09-28. src/motion.js:5 requires the private scoped package @aaron205whitmore/postcss-animate-utils, which is not readable on the public registry and resolves only with the npm token committed in the lure repository's web/.npmrc, so the code it delivers runs when tailwind.config.js loads the plugin and the dev server starts. The published tarball contains no install scripts and no network code; the payload lives in the private dependency, which was not retrieved. Twenty-six such packages under seventeen accounts were published between 2026-07-28 and 2026-10-09.

References

OpenSSF/OSV advisory ADVISORY ADVISORY ADVISORY WEB

Independent LPM AI assessment

Manual Review

Independent AI assessment: manual_review. LPM AI review remains unresolved.

The inspected package code performs CSS catalog and Tailwind style generation, with no concrete attack behavior identified. The source for a required runtime dependency was unavailable, so the dependency boundary remains unresolved.

Static reason

No blocking static signals were detected.

Trigger

Importing the plugin and building its Tailwind styles invokes the unresolved dependency.

Impact

The dependency's behavior cannot be assessed from this snapshot, so a clean conclusion is not established.

Mechanism

The package passes configuration to the dependency as a PostCSS plugin; its implementation was unavailable for inspection.

AI rationale

Evidence

package.jsonplugin.jssrc/motion.jssrc/catalog.js

Independent scan evidence

public snapshot

AI called this Manual Review at 86.0% confidence as Unknown with medium false-positive risk.

AI review observations

The manifest declares @aaron205whitmore/postcss-animate-utils as a runtime dependency, and src/motion.js imports and invokes it while building CSS.
The entrypoint builds styles for Tailwind, and src/catalog.js reads Animate.css to extract animation rules.

Evidence against

The reviewed entrypoint and source show CSS generation and local Animate.css parsing, with no identified attack behavior.

Behavioral surface

Source

Filesystem

Supply chainNo supply-chain packaging signals triggered.

ManifestNo manifest risk signals triggered.

scanned 5 file(s), 10.2 KB of source

Source & flagged code

5 flagged

package.jsonView file

Lines 12-49json

12 ],

13 "homepage": "https://sericpieap.github.io/tailwind-keyframes/",

14 "repository": "https://github.com/sericpieap/tailwind-keyframes/",

15 "author": "sericpieap",

16 "license": "MIT",

17 "keywords": [

18 "tailwindcss",

19 "tailwindcss-plugin",

20 "animate.css",

21 "animation",

22 "keyframes",

23 "motion"

24 ],

25 "scripts": {

26 "lint": "eslint . --ext .js",

27 "test": "node --test"

28 },

29 "dependencies": {

30 "animate.css": "^4.1.1",

31 "postcss": "^8.4.5",

32 "@aaron205whitmore/postcss-animate-utils": "^1.0.1",

33 "postcss-js": "^3.0.3",

34 "postcss-selector-parser": "^6.0.8"

35 },

36 "devDependencies": {

37 "eslint": "^8.5.0",

38 "eslint-config-airbnb-base": "15.0.0",

High

Suspicious Dependency Evidence

The manifest declares @aaron205whitmore/postcss-animate-utils as a runtime dependency, and src/motion.js imports and invokes it while building CSS.

package.jsonView on unpkg · L32

39 "eslint-plugin-import": "^2.25.2",

40 "tailwindcss": "^3.0.7"

41 },

42 "peerDependencies": {

43 "tailwindcss": "^3"

44 },

45 "engines": {

46 "node": ">=18"

47 }

48}

src/motion.jsView file

Lines 1-34javascript

1'use strict';

3const postcss = require('postcss');

4const postcssJs = require('postcss-js');

5const

plugin.jsView file

Lines 1-22javascript

1'use strict';

3const tailwindPlugin = require('tailwindcss/plugin');

4const { loadCatalog } = require('./src/catalog');

5const {

src/catalog.jsView file

Lines 9-49javascript

9function animateCssPath() {

10 try {

11 return require.resolve('animate.css/animate.css');

12 } catch (error) {

13 const wrapped =

Source & flagged code

5 flagged · loading source

package.jsonView file

32"@aaron205whitmore/postcss-animate-utils": "^1.0.1", "postcss-js": "^3.0.3", "postcss-selector-parser": "^6.0.8" }, "devDependencies": { "eslint": "^8.5.0",

High

Suspicious Dependency Evidence

The manifest declares @aaron205whitmore/postcss-animate-utils as a runtime dependency, and src/motion.js imports and invokes it while building CSS.

package.jsonView on unpkg · L32

src/motion.jsView file

5const postcssAnimateUtils = require('@aaron205whitmore/postcss-animate-utils'); function toPostcssOptions(config) { return { variables: { enabled: true, se

High

Suspicious Dependency Evidence

The manifest declares @aaron205whitmore/postcss-animate-utils as a runtime dependency, and src/motion.js imports and invokes it while building CSS.

src/motion.jsView on unpkg · L5

28const processor = postcss([postcssAnimateUtils(toPostcssOptions(config))]); const result = processor.process('', { from: undefined }).sync(); return postcssJs.objectify(resul

Findings

5 High2 Low

HighSuspicious Dependency Evidencepackage.json

HighSuspicious Dependency Evidencesrc/motion.js

HighAi Review Evidenceplugin.js

HighAi Review Evidencesrc/catalog.js

LowScripts Present

LowFilesystem

Affected versions and remediation

This report applies to tailwind-keyframes@2.0.6.

The versions list below shows the verdict for each recorded version.

Avoid installing tailwind-keyframes@2.0.6. 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: 2026-10-20 10:14:42.488Z (UTC).

Source advisory published: 2026-10-19 00:00:00.000Z (UTC).

Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.

Versions

1 known version

2.0.6latestshownMaliciousMalwareBlockPublishedSep 28, 2026, 11:45 AM

OpenSSF/OSV Malicious Advisory

Independent LPM AI assessment

Independent scan evidence

Source & flagged code

Source & flagged code

Findings

Affected versions and remediation

Versions

Related packages

Other malware packages

Behavioral surface

Related packages

Other malware packages

Source & flagged code