MAL-2026-11328

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/logform-core/MAL-2026-11328.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-11328
Aliases
  • GHSA-f2wx-p6h3-rgg2
Published
2026-07-30T16:07:02Z
Modified
2026-08-05T06:36:19.549886138Z
Summary
Malicious code in logform-core (npm)
Details

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

Source: amazon-inspector (1ec6c47e9e94b571242404a22ce01e255dc1df012c3d13477b5d2db9a96a037c)

Package name 'logform-core' is one edit/suffix away from the widely-used 'logform' logging-format library, and the README advertises formatting utilities (formatCurrency, roundDecimal) consistent with that naming. However, the only actual export in index.js is computeBoundedFraction, a Kelly-criterion-style betting stake calculator unrelated to either the README or the package name. There is no network I/O, no credential access, no lifecycle scripts, and no obfuscation in this version — installing the package does not run code that harms the installer. The name/API/README mismatch is a typosquat-shape signal worth human adjudication: it could be a confused/abandoned placeholder, an unrelated package with a coincidentally similar name, or a name-squat setup awaiting a future malicious version. Name-similarity alone, without an installer-harm payload, is not sufficient for an auto-block.

Source: ghsa-malware (4e18f24df37ad0cd0ddd311e006738521585804f186b83c814cbbc3af20aecff)

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": [
        {
            "modified_time": "2026-07-30T16:07:03Z",
            "id": "GHSA-f2wx-p6h3-rgg2",
            "import_time": "2026-07-31T01:10:09.630706262Z",
            "ranges": [
                {
                    "type": "SEMVER",
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ]
                }
            ],
            "source": "ghsa-malware",
            "sha256": "4e18f24df37ad0cd0ddd311e006738521585804f186b83c814cbbc3af20aecff"
        },
        {
            "modified_time": "2026-08-05T05:55:38Z",
            "id": "IN-MAL-2026-013248",
            "import_time": "2026-08-05T06:00:58.151693792Z",
            "versions": [
                "3.2.0"
            ],
            "source": "amazon-inspector",
            "sha256": "c56b840ff0fbbaf197d07511638db31b76600e185d0b4a988cc20848d96566f4"
        },
        {
            "versions": [
                "3.1.0"
            ],
            "id": "IN-MAL-2026-012957",
            "import_time": "2026-08-05T06:00:24.355586702Z",
            "modified_time": "2026-08-05T05:13:22Z",
            "source": "amazon-inspector",
            "sha256": "1ec6c47e9e94b571242404a22ce01e255dc1df012c3d13477b5d2db9a96a037c"
        },
        {
            "versions": [
                "3.3.0"
            ],
            "id": "IN-MAL-2026-013001",
            "import_time": "2026-08-05T06:00:29.694640103Z",
            "modified_time": "2026-08-05T05:19:44Z",
            "source": "amazon-inspector",
            "sha256": "a9ed16b42c92990afda7814f1cdd84a7c4e2d21018466716f13aa5336992d6d4"
        }
    ]
}
References
Credits

Affected packages

npm / logform-core

Package

Name
logform-core
View open source insights on deps.dev
Purl
pkg:npm/logform-core

Affected ranges

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

Affected versions

3.*
3.1.0
3.2.0
3.3.0

Database specific

cwes 
[
    {
        "cweId": "CWE-506",
        "name": "Embedded Malicious Code",
        "description": "The product contains code that appears to be malicious in nature."
    },
    {
        "cweId": "CWE-506",
        "name": "Embedded Malicious Code",
        "description": "The product contains code that appears to be malicious in nature."
    },
    {
        "cweId": "CWE-506",
        "name": "Embedded Malicious Code",
        "description": "The product contains code that appears to be malicious in nature."
    },
    {
        "cweId": "CWE-506",
        "name": "Embedded Malicious Code",
        "description": "The product contains code that appears to be malicious in nature."
    }
]
indicators 
{
    "evidence_files": [
        {
            "path": "index.js",
            "tlsh": "cef044c8e0777526cab7223143ab0290faae1447900611a136f3d8fe1f23494a2e695f",
            "sha256": "47762cbc013c5f8a0dea22fc513767ecfbba87955733fd2221098e7c524b6d2d"
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/logform-core/MAL-2026-11328.json"