MAL-2026-18081

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Import Source

https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/tailwind-css-keyframes/MAL-2026-18081.json

JSON Data

https://api.osv.dev/v1/vulns/MAL-2026-18081

Published

2026-10-19T00:00:00Z

Modified

2026-10-29T14:45:07Z

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.

-= Per source details. Do not edit below this line.=-

Source: amazon-inspector (e859eaecef067fc4ab7faa25927f15ed5158be6f58103f6aea3f151e4ebd9e78)

The package contains no behavior indicative of a supply-chain attack against installers. No install-time or import-time network fetches, credential access, environment scraping, or code execution paths were observed. No lifecycle scripts, hardcoded external endpoints, or obfuscated payloads are present.

Database specific

{
    "iocs": {
        "files": [
            {
                "note": "require of private scoped dependency @jasperquinn/postcss-motion-helpers",
                "paths": [
                    "src/motion.js"
                ],
                "source": "PACKAGE_ARCHIVE"
            }
        ]
    },
    "malicious-packages-origins": [
        {
            "id": "IN-MAL-2026-022378",
            "import_time": "2026-10-29T14:37:06.383980211Z",
            "modified_time": "2026-10-29T14:25:07Z",
            "sha256": "e859eaecef067fc4ab7faa25927f15ed5158be6f58103f6aea3f151e4ebd9e78",
            "source": "amazon-inspector",
            "versions": [
                "1.0.7"
            ]
        }
    ]
}

References

Credits

- Amazon Inspector - FINDER
- - inspector-research@amazon.com
- pkgwarden - FINDER
- - https://pkgwarden.com

Affected packages

npm / tailwind-css-keyframes

Package

Name: tailwind-css-keyframes; View open source insights on deps.dev
Purl: pkg:npm/tailwind-css-keyframes

Affected ranges

Affected versions

1.*

1.0.7

Database specific

cwes

[
    {
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code"
    }
]

indicators

{
    "package_integrity": [
        {
            "filename": "tailwind-css-keyframes-1.0.7.tgz",
            "hashes": {
                "sha1": "090f5a2b46da2809429d894c2207bfa36f6823ae",
                "sha512_sri": "sha512-MQJhjbhRCNwdI9Dk99RU1EBopWgtxia9CBXAo8cXlGl2uxl6aIfRe5EeBlKdVeTPKUpYcq7R5i+UqDL08d3ZXQ=="
            }
        }
    ]
}

source

"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/tailwind-css-keyframes/MAL-2026-18081.json"