MAL-2026-4506

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/cb-wallet-data/MAL-2026-4506.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-4506
Aliases
  • GHSA-7w56-x3g2-57fg
Published
2026-05-20T02:34:35Z
Modified
2026-09-08T00:30:14Z
Summary
Malicious code in cb-wallet-data (npm)
Details

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

Source: amazon-inspector (9d076ee3d487c7c10f785494c4391e39eb327b696224d5653746144fa5ac8d37)

Package name 'cb-wallet-data' targets a presumed Coinbase-internal namespace and is published by an unaffiliated party. Both postinstall.js (npm install lifecycle hook) and index.js (main, runs on require) issue an unconditional HTTPS GET to https://icy-cell-fb53.gh0stfqce25.workers.dev/poc carrying the package name and installer Node.js runtime version as query parameters. Any developer or build system whose package manager misroutes the internal name 'cb-wallet-data' to the public npm registry will silently transmit the existence of that internal name plus their Node version to a third-party Cloudflare Workers endpoint without consent. While the payload is narrow (no credential or environment scraping), the channel is a confirmed install-time and import-time beacon to attacker/researcher-controlled infrastructure, exposing internal namespace and toolchain metadata that itself is sensitive supply-chain reconnaissance data.

Source: ghsa-malware (b40e10a9e9de90e7efbd777b5a024d2cd88e7e4be863f638d82dcac760d8ea55)

Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.

Database specific 
{
    "malicious-packages-origins": [
        {
            "id": "IN-MAL-2026-003425",
            "import_time": "2026-05-26T05:50:37.125659606Z",
            "modified_time": "2026-05-20T02:34:35Z",
            "sha256": "9d076ee3d487c7c10f785494c4391e39eb327b696224d5653746144fa5ac8d37",
            "source": "amazon-inspector",
            "versions": [
                "0.0.1"
            ]
        },
        {
            "id": "GHSA-7w56-x3g2-57fg",
            "import_time": "2026-09-08T00:15:10.567834204Z",
            "modified_time": "2026-09-07T04:56:56Z",
            "ranges": [
                {
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ],
                    "type": "SEMVER"
                }
            ],
            "sha256": "b40e10a9e9de90e7efbd777b5a024d2cd88e7e4be863f638d82dcac760d8ea55",
            "source": "ghsa-malware"
        }
    ]
}
References
Credits

Affected packages

npm / cb-wallet-data

Package

Name
cb-wallet-data
View open source insights on deps.dev
Purl
pkg:npm/cb-wallet-data

Affected ranges

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

Affected versions

0.*
0.0.1

Database specific

cwes 
[
    {
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code"
    },
    {
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code"
    }
]
indicators 
{
    "evidence_files": [
        {
            "path": "postinstall.js",
            "sha256": "435917089164733773227c8876a1606d3798a75e6d22f97449272ce9cc47284b",
            "tlsh": "73e0a3f421e8722c2cf83ac82117991fd287813074d9d9c09bd010a11bc65a55563195"
        },
        {
            "path": "package.json",
            "sha256": "dd65a7145e4e887d627f0fd18f76aa65d5763d47cc4eca07387c083d0cd75991",
            "tlsh": "b9f055a06864da3b28f857a909b7f40c6d22890b5148bc1f1bff004c935d6fa45bf69f"
        }
    ],
    "package_integrity": [
        {
            "filename": "cb-wallet-data-0.0.1.tgz",
            "hashes": {
                "sha1": "f252b3be294971acff897ff343134fafca31290e",
                "sha512_sri": "sha512-PSyli4QysPr+xkaCe/04KZyjUTGkvgWOyWjRfPP9GfIDObDfIF8CG/5eCpC7H52MoUqfzhHmTcgFifI3r1JQ8g=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/cb-wallet-data/MAL-2026-4506.json"