MAL-2026-5249

Import Source

https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/eslint-plugin-executable-stories-vitest/MAL-2026-5249.json

JSON Data

https://api.osv.dev/v1/vulns/MAL-2026-5249

Published

2026-06-05T00:53:43Z

Modified

2026-06-05T06:16:42.488192605Z

Summary

Malicious code in eslint-plugin-executable-stories-vitest (npm)

Details

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

Source: google-open-source-security (a6c7977dbc054cdb7fe56da0d2fbd26e2a6fed695deb4263ccbf4adfedd86acb)

The Miasma malware is a self-propagating worm that spreads across the npm registry by abusing weaponized binding.gyp files to achieve execution during package installation, bypassing security tools that only inspect package lifecycle scripts. Upon execution, the malware attempts to exfiltrate credentials and OIDC tokens for various cloud and registry services, and propagates by compromising other packages managed by the stolen accounts or committing backdoor files to GitHub repositories.

Database specific

{
    "malicious-packages-origins": [
        {
            "source": "google-open-source-security",
            "sha256": "a6c7977dbc054cdb7fe56da0d2fbd26e2a6fed695deb4263ccbf4adfedd86acb",
            "modified_time": "2026-06-05T05:12:55.157000667Z",
            "versions": [
                "1.2.1",
                "2.1.8"
            ],
            "import_time": "2026-06-05T05:50:37.549948Z"
        }
    ]
}

References

Affected packages

npm / eslint-plugin-executable-stories-vitest

Package

Name: eslint-plugin-executable-stories-vitest; View open source insights on deps.dev
Purl: pkg:npm/eslint-plugin-executable-stories-vitest

Affected ranges

Affected versions

1.*

1.2.1

2.*

2.1.8

Database specific

source

"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/eslint-plugin-executable-stories-vitest/MAL-2026-5249.json"