MAL-2026-5250

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/executable-stories-cypress/MAL-2026-5250.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-5250
Published
2026-06-05T00:53:43Z
Modified
2026-07-08T22:01:50.152935712Z
Summary
Malicious code in executable-stories-cypress (npm)
Details

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

Source: amazon-inspector (838176fbbb9290f1ee55af50cd6e292d461f33565a675a6e965bbe50d3b6c3ec)

No concrete installer-harm evidence was identified in this version of executable-stories-cypress. No lifecycle hook payloads, hardcoded exfiltration endpoints, credential-path reads, or known-bad-infrastructure droppers were observed. Coverage of the package contents was partial, so a human reviewer should confirm before the package is treated as fully cleared.

Source: google-open-source-security (a6c7977dbc054cdb7fe56da0d2fbd26e2a6fed695deb4263ccbf4adfedd86acb)

The Miasma malware is a self-propagating worm that spreads across the npm registry by abusing weaponized binding.gyp files to achieve execution during package installation, bypassing security tools that only inspect package lifecycle scripts. Upon execution, the malware attempts to exfiltrate credentials and OIDC tokens for various cloud and registry services, and propagates by compromising other packages managed by the stolen accounts or committing backdoor files to GitHub repositories.

Database specific 
{
    "malicious-packages-origins": [
        {
            "versions": [
                "3.1.1",
                "4.0.1",
                "5.0.1",
                "6.1.1",
                "7.0.3",
                "8.3.2"
            ],
            "import_time": "2026-06-05T05:50:37.549948Z",
            "sha256": "a6c7977dbc054cdb7fe56da0d2fbd26e2a6fed695deb4263ccbf4adfedd86acb",
            "source": "google-open-source-security",
            "modified_time": "2026-06-05T05:12:55.157000667Z"
        },
        {
            "sha256": "4d8185326389b2afed12d50ccaaa790d3de97d7d28f8e492d797a6ca237f8283",
            "import_time": "2026-07-08T20:32:43.497258161Z",
            "versions": [
                "7.0.3"
            ],
            "source": "amazon-inspector",
            "id": "IN-MAL-2026-008554",
            "modified_time": "2026-07-08T20:27:54Z"
        },
        {
            "sha256": "175b9b9d736fc96b68bb47040b8a036814f9881b22f09fe0d3244e8ab0d323db",
            "import_time": "2026-07-08T21:54:11.033797876Z",
            "versions": [
                "6.1.1"
            ],
            "source": "amazon-inspector",
            "id": "IN-MAL-2026-008646",
            "modified_time": "2026-07-08T21:38:21Z"
        },
        {
            "versions": [
                "4.0.1"
            ],
            "import_time": "2026-07-08T21:54:10.701240199Z",
            "sha256": "4efb8604daaa210fc76250cc4e16c1a00a7a0ab5db22b36c8923ae5e5276f1e0",
            "source": "amazon-inspector",
            "id": "IN-MAL-2026-008640",
            "modified_time": "2026-07-08T21:37:30Z"
        },
        {
            "sha256": "838176fbbb9290f1ee55af50cd6e292d461f33565a675a6e965bbe50d3b6c3ec",
            "import_time": "2026-07-08T21:54:10.366983469Z",
            "versions": [
                "3.1.1"
            ],
            "source": "amazon-inspector",
            "id": "IN-MAL-2026-008633",
            "modified_time": "2026-07-08T21:36:35Z"
        },
        {
            "versions": [
                "8.3.2"
            ],
            "import_time": "2026-07-08T21:54:10.46113548Z",
            "sha256": "e9d8c493edfd12e520f9604d25a611a7f52b3f22da1e0fc441df90ca4ac78c01",
            "source": "amazon-inspector",
            "id": "IN-MAL-2026-008635",
            "modified_time": "2026-07-08T21:36:52Z"
        },
        {
            "sha256": "0ca2599b621fa5d9d0ef64f00c5035ff4aba58d847ea40c7e844c4a6a0a10cf9",
            "import_time": "2026-07-08T21:54:10.32879988Z",
            "versions": [
                "5.0.1"
            ],
            "source": "amazon-inspector",
            "id": "IN-MAL-2026-008632",
            "modified_time": "2026-07-08T21:36:27Z"
        }
    ]
}
References
Credits

Affected packages

npm / executable-stories-cypress

Package

Name
executable-stories-cypress
View open source insights on deps.dev
Purl
pkg:npm/executable-stories-cypress

Affected ranges

Affected versions

3.*
3.1.1
4.*
4.0.1
5.*
5.0.1
6.*
6.1.1
7.*
7.0.3
8.*
8.3.2

Database specific

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"
    },
    {
        "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.",
        "cweId": "CWE-506",
        "name": "Embedded Malicious Code"
    }
]
indicators 
{
    "package_integrity": [
        {
            "hashes": {
                "sha1": "318f2fc49f330f5138eb58ba4e8e4f943505f821",
                "sha512_sri": "sha512-VkwsD1FUp5uhKm+ecZABw6EgZ9zITKwlMvafFHBf6aR/7HCZmvVGQPvnnsJ3ixqaKGyywl6Xj7/pFu3d9LwOng=="
            },
            "filename": "executable-stories-cypress-7.0.3.tgz"
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/executable-stories-cypress/MAL-2026-5250.json"