MAL-2026-3811

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Import Source

https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/claude-code-base-action/MAL-2026-3811.json

JSON Data

https://api.osv.dev/v1/vulns/MAL-2026-3811

Published

2026-05-17T15:19:44Z

Modified

2026-05-17T16:02:39.060819Z

Summary

Malicious code in claude-code-base-action (npm)

Details

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

Source: ossf-package-analysis (f08c76c834d5f7c2ce735d4dd85684ec34f3dcc29e1353dc7633fb72ee79aaaf)

The OpenSSF Package Analysis project identified 'claude-code-base-action' @ 2.0.0 (npm) as malicious.

It is considered malicious because:

The package communicates with a domain associated with malicious activity.

Database specific

{
    "malicious-packages-origins": [
        {
            "sha256": "f08c76c834d5f7c2ce735d4dd85684ec34f3dcc29e1353dc7633fb72ee79aaaf",
            "import_time": "2026-05-17T15:26:55.54141334Z",
            "modified_time": "2026-05-17T15:19:44Z",
            "versions": [
                "2.0.0"
            ],
            "source": "ossf-package-analysis"
        },
        {
            "sha256": "3c9e36883f6e538eda86eb64854165d767b96458a12405a7ccd967c8015f6269",
            "import_time": "2026-05-17T15:50:45.342577666Z",
            "modified_time": "2026-05-17T15:41:36Z",
            "versions": [
                "2.2.2"
            ],
            "source": "ossf-package-analysis"
        }
    ]
}

References

Credits

- OpenSSF: Package Analysis - FINDER
- - https://github.com/ossf/package-analysis
  - https://openssf.slack.com/channels/package_analysis

Affected packages

npm / claude-code-base-action

Package

Name: claude-code-base-action; View open source insights on deps.dev
Purl: pkg:npm/claude-code-base-action

Affected ranges

Affected versions

2.*

2.0.0

2.2.2

Database specific

source

"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/claude-code-base-action/MAL-2026-3811.json"