MAL-2026-5878

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/cache-compat-utils/MAL-2026-5878.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-5878
Published
2026-06-16T10:59:10Z
Modified
2026-07-09T23:02:06.156775988Z
Summary
Malicious code in cache-compat-utils (PyPI)
Details

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

Source: amazon-inspector (70fc75889476bd737b302c856fb1d2da1b263a93786bc27fed3978c3eb0584cd)

The package was found to contain malicious code or consuming dependency that contains malicious code

Source: kam193 (3abe4019efea5cdd405c9129e127f5d8b05456422574e40b01c6ec3b10177975)

The package contains obfuscated JS code with an infostealer harvesting all kinds of credentials, as well as a worm capable of spreading the infection further.

Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.

Campaign: 2026-06-cache-compat-utils

Reasons (based on the campaign):

  • obfuscation

  • malware

  • infostealer

  • exfiltration-credentials

  • exfiltration-ssh-keys

  • exfiltration-cloud-tokens

Database specific 
{
    "malicious-packages-origins": [
        {
            "import_time": "2026-06-16T12:17:04.374071029Z",
            "modified_time": "2026-06-16T10:59:10.135198Z",
            "versions": [
                "0.1.0"
            ],
            "source": "kam193",
            "id": "pypi/2026-06-cache-compat-utils/cache-compat-utils",
            "sha256": "3abe4019efea5cdd405c9129e127f5d8b05456422574e40b01c6ec3b10177975"
        },
        {
            "modified_time": "2026-07-09T22:10:40Z",
            "source": "amazon-inspector",
            "versions": [
                "0.1.0"
            ],
            "sha256": "70fc75889476bd737b302c856fb1d2da1b263a93786bc27fed3978c3eb0584cd",
            "import_time": "2026-07-09T22:56:32.672488626Z",
            "id": "IN-MAL-2026-009541"
        }
    ]
}
References
Credits

Affected packages

PyPI / cache-compat-utils

Package

Name
cache-compat-utils
View open source insights on deps.dev
Purl
pkg:pypi/cache-compat-utils

Affected ranges

Affected versions

0.*
0.1.0

Database specific

cwes 
[
    {
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code"
    }
]
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/cache-compat-utils/MAL-2026-5878.json"
indicators 
{
    "package_integrity": [
        {
            "hashes": {
                "blake2b_256": "ea797314755ce50aba1a6eb730e12d5890a0d2483765ba3849fb833c7c983b97",
                "sha256": "95d4c26b650e85fbeeb5c1fc41a63026d65bd10a1646964caf603e15390cc302",
                "md5": "7b3508cce40c0227df11a2531cc450e6"
            },
            "filename": "cache_compat_utils-0.1.0-py3-none-any.whl"
        },
        {
            "hashes": {
                "blake2b_256": "1044feba4aa3d33318b763301dbcd8e8b74d1b1d98513db18e04884fe01243b8",
                "sha256": "7af9708750fd749db6ae773d7ce0b34f6a7c69f21c6192c89091394103ad4869",
                "md5": "c097b09be5a8261249d8579a7e60407d"
            },
            "filename": "cache_compat_utils-0.1.0.tar.gz"
        }
    ]
}