MAL-2026-4

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/rules-playground/MAL-2026-4.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-4
Published
2026-01-01T17:03:00Z
Modified
2026-01-02T22:04:30Z
Summary
Malicious code in rules-playground (npm)
Details

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

Source: amazon-inspector (c0cd14651deea0e986dc2d7f9b11494d8c96a074ed9112aaa16076ea19b2b718)

The package rules-playground was found to contain malicious code.

Source: ossf-package-analysis (25f6cc3039b9ea0289071ff13147621de7ac3612f749b115ad9ebba1a681d97e)

The OpenSSF Package Analysis project identified 'rules-playground' @ 0.0.3 (npm) as malicious.

It is considered malicious because:

  • The package communicates with a domain associated with malicious activity.
Database specific 
{
    "malicious-packages-origins":  [
        {
            "import_time":  "2026-01-01T17:07:11.33956582Z",
            "modified_time":  "2026-01-01T17:03:00Z",
            "sha256":  "25f6cc3039b9ea0289071ff13147621de7ac3612f749b115ad9ebba1a681d97e",
            "source":  "ossf-package-analysis",
            "versions":  [
                "0.0.3"
            ]
        },
        {
            "import_time":  "2026-01-02T21:35:51.276094608Z",
            "modified_time":  "2026-01-02T21:29:26Z",
            "ranges":  [
                {
                    "events":  [
                        {
                            "introduced":  "0"
                        }
                    ],
                    "type":  "SEMVER"
                }
            ],
            "sha256":  "c0cd14651deea0e986dc2d7f9b11494d8c96a074ed9112aaa16076ea19b2b718",
            "source":  "amazon-inspector"
        }
    ]
}
Credits

Affected packages

npm / rules-playground

Package

Name
rules-playground
View open source insights on deps.dev
Purl
pkg:npm/rules-playground

Affected ranges

Type
SEMVER
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.0.3

Database specific

source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/rules-playground/MAL-2026-4.json"