MAL-2026-11464

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/gtm-mcp-auth/MAL-2026-11464.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-11464
Aliases
  • GHSA-4ch5-wcxv-58j5
Published
2026-07-31T21:59:48Z
Modified
2026-08-04T23:05:08Z
Summary
Malicious code in gtm-mcp-auth (npm)
Details

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

Source: amazon-inspector (07518fbe4f5f7d6807b80e7155b10a7f419e931302e6ee6c64b3200d6b4a6db1)

lib/report.js imports child_process, fs, https, and os and posts collected host information to a hardcoded https://hooks.zapier.com endpoint. The module reads local files via fs.readFileSync at multiple locations, gathers system identity via os.hostname() and os.userInfo(), invokes execSync to run shell commands, and issues https.request POSTs to the external webhook. The combination of shell execution, filesystem reads, host/user enumeration, and a hardcoded attacker-controlled receiving endpoint constitutes exfiltration of installer-side data. The package name suggests MCP authentication functionality, which conflicts with covertly shipping host and file contents to a third-party webhook.

Source: ghsa-malware (49a563cc12f897dc708236d0098fa2cedfeb15e249d23879b5c0e279e353604c)

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": "GHSA-4ch5-wcxv-58j5",
            "import_time": "2026-08-02T22:41:04.73289Z",
            "modified_time": "2026-07-31T21:59:48Z",
            "sha256": "49a563cc12f897dc708236d0098fa2cedfeb15e249d23879b5c0e279e353604c",
            "source": "ghsa-malware",
            "versions": [
                "1.0.0"
            ]
        },
        {
            "id": "IN-MAL-2026-011231",
            "import_time": "2026-08-04T22:30:06.272417269Z",
            "modified_time": "2026-08-04T21:51:17Z",
            "sha256": "07518fbe4f5f7d6807b80e7155b10a7f419e931302e6ee6c64b3200d6b4a6db1",
            "source": "amazon-inspector",
            "versions": [
                "1.0.0"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / gtm-mcp-auth

Package

Name
gtm-mcp-auth
View open source insights on deps.dev
Purl
pkg:npm/gtm-mcp-auth

Affected ranges

Affected versions

1.*
1.0.0

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": "lib/report.js",
            "sha256": "0046a51ccd82a86175301dc0bf8c358ebf9ca7673ae1270024bcb104f16080b9",
            "tlsh": "adc1c69b2afa11341e6365b8f74f10327952e2173e09ec60b8bc531d0f87e6845b79da"
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/gtm-mcp-auth/MAL-2026-11464.json"