MAL-2026-6414

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/two-factor-prompt-lib/MAL-2026-6414.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-6414
Aliases
  • GHSA-94jg-r3hx-4v8v
Published
2026-06-25T02:16:08Z
Modified
2026-07-08T17:16:53.389399444Z
Summary
Malicious code in two-factor-prompt-lib (npm)
Details

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

Source: amazon-inspector (95ebb96758f051c0a5a1c8fe97fb05c898f2489f4567fb64fbd271eb103dcadc)

Package self-identifies as a dependency-confusion proof-of-concept aimed at an internal/private package name. The postinstall script (postinstall.js) prints the host's hostname and current timestamp to local stdout via console.log; it performs no network I/O, no remote fetch, no credential access, and no filesystem modification beyond what npm itself does on install. While the current payload is benign (local logging only), the package's stated purpose is to demonstrate that an organization installing the public name would unintentionally pull this package in place of an internal counterpart. Routing to human review so an organization can decide whether to claim/block the name in their internal namespace.

Source: ghsa-malware (d7f55251c2837eacfe7f8b0c2ab44077608dc2562f3c167dc1d2927b9f730fad)

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": [
        {
            "ranges": [
                {
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ],
                    "type": "SEMVER"
                }
            ],
            "id": "GHSA-94jg-r3hx-4v8v",
            "source": "ghsa-malware",
            "import_time": "2026-06-25T03:23:52.148135819Z",
            "sha256": "d7f55251c2837eacfe7f8b0c2ab44077608dc2562f3c167dc1d2927b9f730fad",
            "modified_time": "2026-06-25T02:16:09Z"
        },
        {
            "modified_time": "2026-07-08T16:35:52Z",
            "id": "IN-MAL-2026-008160",
            "source": "amazon-inspector",
            "import_time": "2026-07-08T17:01:35.470962896Z",
            "sha256": "95ebb96758f051c0a5a1c8fe97fb05c898f2489f4567fb64fbd271eb103dcadc",
            "versions": [
                "0.0.1-poc"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / two-factor-prompt-lib

Package

Name
two-factor-prompt-lib
View open source insights on deps.dev
Purl
pkg:npm/two-factor-prompt-lib

Affected ranges

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

Affected versions

0.*
0.0.1-poc

Database specific

indicators 
{
    "evidence_files": [
        {
            "path": "postinstall.js",
            "tlsh": "1ae0cdd81dccd63531f541c0b5501123f31f9b911615b869b48d829f46c59dcaa1557d",
            "sha256": "42358988e311426670b107675055052dcb10e99024797bd340ac9113fc595b1a"
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/two-factor-prompt-lib/MAL-2026-6414.json"
cwes 
[
    {
        "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"
    }
]