registry / Malware / tailwind-css-keyframes / 1.0.7

tailwind-css-keyframes@1.0.7

A configurable, namespaced Animate.css integration for Tailwind CSS

OpenSSF/OSV Malicious Advisory

imported 3d ago · by OpenSSF/OSV

OpenSSF/OSV advisory MAL-2026-18081 confirms this npm version as malicious.

Advisory

MAL-2026-18081

Source

OpenSSF Malicious Packages via OSV

Summary

Malicious code in tailwind-css-keyframes (npm)

Details

tailwind-css-keyframes (1.0.7) 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 kinsley_badu on 2026-09-28. src/motion.js:5 requires the private scoped package @jasperquinn/postcss-motion-helpers, 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 source shows a CSS plugin and no lifecycle hooks. Because a required helper dependency is imported and invoked but its source is unavailable, the package cannot be cleared as clean from this snapshot.

Static reason

No blocking static signals were detected.

Trigger

Tailwind invokes the exported plugin to generate styles.

Impact

No harmful effect is established, but the helper’s behavior could not be assessed.

Mechanism

The plugin builds styles through a function that calls the unavailable helper as a PostCSS plugin.

AI rationale

Evidence

package.jsonsrc/motion.jsplugin.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 @jasperquinn/postcss-motion-helpers as a required dependency.
The plugin imports and invokes that helper while building CSS styles.
The helper’s source was unavailable for inspection in this snapshot.

Evidence against

The package manifest has no install or runtime lifecycle hook; its scripts are lint and test commands.

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 5-49json

5 "main": "plugin.js",

6 "exports": "./plugin.js",

7 "files": [

8 "plugin.js",

9 "src",

10 "README.md",

11 "LICENSE"

12 ],

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

14 "repository": "https://github.com/sericpieap/tailwind-css-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": {

High

Suspicious Dependency Evidence

The manifest declares @jasperquinn/postcss-motion-helpers as a required dependency.

package.jsonView on unpkg · L25

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

31 "postcss": "^8.4.5",

32 "@jasperquinn/postcss-motion-helpers": "^1.0.1",

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

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

High

Suspicious Dependency Evidence

The manifest declares @jasperquinn/postcss-motion-helpers as a required dependency.

package.jsonView on unpkg · L32

35 },

36 "devDependencies": {

37 "eslint": "^8.5.0",

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

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 {

Source & flagged code

5 flagged · loading source

package.jsonView file

32"@jasperquinn/postcss-motion-helpers": "^1.0.1", "postcss-js": "^3.0.3", "postcs

High

Suspicious Dependency Evidence

The manifest declares @jasperquinn/postcss-motion-helpers as a required dependency.

package.jsonView on unpkg · L32

25"scripts": { "lint": "eslint . --ext .js", "test": "node --test" },

High

Suspicious Dependency Evidence

The manifest declares @jasperquinn/postcss-motion-helpers as a required dependency.

package.jsonView on unpkg · L25

src/motion.jsView file

5const postcssAnimateUtils = require('@jasperquinn/postcss-motion-helpers'); function toPostcssOptions(

High

Ai Review Evidence

The plugin imports and invokes that helper while building CSS styles.

src/motion.jsView on unpkg · L5

Findings

5 High2 Low

HighSuspicious Dependency Evidencepackage.json

HighAi Review Evidencesrc/motion.js

HighAi Review Evidenceplugin.js

HighSuspicious Dependency Evidencepackage.json

LowScripts Present

LowFilesystem

Affected versions and remediation

This report applies to tailwind-css-keyframes@1.0.7.

See all versions of tailwind-css-keyframes for other recorded verdicts.

Avoid installing tailwind-css-keyframes@1.0.7. 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: 2026-10-20 10:20:06.775Z (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.

OpenSSF/OSV Malicious Advisory

Independent LPM AI assessment

Independent scan evidence

Source & flagged code

Source & flagged code

Findings

Affected versions and remediation

Related packages

Other malware packages

Behavioral surface

Source & flagged code

Related packages

Other malware packages