MAL-2026-10078

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/vybscan-testbed-inert-postinstall/MAL-2026-10078.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-10078
Aliases
  • GHSA-cwcf-rmgg-qg9w
Published
2026-07-09T15:44:47Z
Modified
2026-07-20T01:04:41.210790400Z
Summary
Malicious code in vybscan-testbed-inert-postinstall (npm)
Details

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

Source: amazon-inspector (f4e6f35e49b7701bb75a88eb63fcf918c389272d5282093c8422d9e1f388dd38)

package.json declares a postinstall lifecycle script that runs id and reads the process environment, piping the collected host identity and environment variables to a remote endpoint via curl. This fires automatically on npm install without user interaction, causing the installer's environment variables (which routinely contain credentials, tokens, and API keys) and user/host identity to be transmitted off-host to an attacker-controlled destination.

Source: ghsa-malware (a29be5167c0a6e93511c733f280a23c21beb82e3fbf972c21334a4582aa64703)

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-2026-009213",
            "source": "amazon-inspector",
            "import_time": "2026-07-09T16:20:51.765755146Z",
            "modified_time": "2026-07-09T15:44:47Z",
            "sha256": "f4e6f35e49b7701bb75a88eb63fcf918c389272d5282093c8422d9e1f388dd38",
            "versions": [
                "1.0.0"
            ]
        },
        {
            "id": "GHSA-cwcf-rmgg-qg9w",
            "source": "ghsa-malware",
            "import_time": "2026-07-20T00:57:10.763311691Z",
            "modified_time": "2026-07-20T00:07:50Z",
            "ranges": [
                {
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ],
                    "type": "SEMVER"
                }
            ],
            "sha256": "a29be5167c0a6e93511c733f280a23c21beb82e3fbf972c21334a4582aa64703"
        }
    ]
}
References
Credits

Affected packages

npm / vybscan-testbed-inert-postinstall

Package

Name
vybscan-testbed-inert-postinstall
View open source insights on deps.dev
Purl
pkg:npm/vybscan-testbed-inert-postinstall

Affected ranges

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

Affected versions

1.*
1.0.0

Database specific

indicators 
{
    "evidence_files": [
        {
            "sha256": "7926f6bc957d1d1037f3f413b8790785a144939c94455bd05827fd8e65f97a43",
            "tlsh": "e9319581450592253ad001a8991f238fd735c32e42c4acd4d1ef429f874bd7722bb6bb",
            "path": "package.json"
        }
    ],
    "package_integrity": [
        {
            "filename": "vybscan-testbed-inert-postinstall-1.0.0.tgz",
            "hashes": {
                "sha1": "c76c4137137e98ecff98dc4b60996056b7de1577",
                "sha512_sri": "sha512-KKDDc/9TrBUyXAQi8jfsOeamLnsqV3dc1eSw7bgNywEKtBHyE5AhZfbxOwfDfZMO4jHfwDFqotSgHCHXn7//aQ=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/vybscan-testbed-inert-postinstall/MAL-2026-10078.json"
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."
    }
]