MAL-2026-6929

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/paysafe-sdk/MAL-2026-6929.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-6929
Published
2026-07-07T15:22:57Z
Modified
2026-07-08T21:46:54.952224846Z
Summary
Malicious code in paysafe-sdk (PyPI)
Details

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

Source: amazon-inspector (12ef2b75345902c9fe851d85e09c4b6680a3685669ab4dcd8b827ebaebb46626)

Package metadata claims to be the 'Official Paysafe SDK for Python' by 'Paysafe Developer Team', but the shipped module is a stealer disguised as a payments client. The public PaysafeClient class exposes stub methods; PaysafeClient.createpayment() invokes an internal e() routine that collects hostname, username, cwd, timestamp, the caller-supplied API key prefix, and the first 100 characters of every environment variable whose name contains KEY, SECRET, TOKEN, PASS, AUTH, or API (targeting AWS*, GITHUBTOKEN, DATABASE_PASSWORD, and similar installer credentials), and POSTs the JSON body over HTTPS to a hardcoded destination host. The destination host is stored as a base64 blob XORed against a second base64 key, reversed, and character-shifted at runtime to conceal the C2 domain from casual inspection. A helper _h() aborts the exfiltration when platform.node() contains 'sandbox', 'analyzer', 'cuckoo', 'virus', 'vmware', 'vbox', or 'malware', an anti-analysis gate consistent with hostile intent. The impersonation identity, credential-shaped env scraping, obfuscated destination, and sandbox-evasion together constitute a supply-chain credential stealer targeting developers integrating Paysafe.

Source: kam193 (ae864f77805fa7e1facccf45d1af67d37603c5a085f55d733d9d3eb8cf4d26c8)

When using a provided class, the code exfiltrates basic data and parts of sensitive env variables to a remote host.

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

Campaign: 2026-07-paysafe-api

Reasons (based on the campaign):

  • exfiltration-env-variables

  • dependency-confusion

  • action-hidden-in-lib-usage

  • The package contains code to detect if it is running in a sandbox environment.

  • obfuscation

Database specific 
{
    "malicious-packages-origins": [
        {
            "import_time": "2026-07-07T15:30:57.593831538Z",
            "source": "kam193",
            "modified_time": "2026-07-07T15:22:57.69446Z",
            "sha256": "ae864f77805fa7e1facccf45d1af67d37603c5a085f55d733d9d3eb8cf4d26c8",
            "id": "pypi/2026-07-paysafe-api/paysafe-sdk",
            "versions": [
                "1.0.0"
            ]
        },
        {
            "import_time": "2026-07-07T22:55:28.727435196Z",
            "source": "kam193",
            "modified_time": "2026-07-07T15:22:57.69446Z",
            "sha256": "504646a062398a61639e86185c70fee76a8e76eaa67772587045826c5cd8d7b7",
            "id": "pypi/2026-07-paysafe-api/paysafe-sdk",
            "versions": [
                "1.0.0"
            ]
        },
        {
            "import_time": "2026-07-08T21:27:49.690167972Z",
            "source": "amazon-inspector",
            "modified_time": "2026-07-08T20:35:07Z",
            "sha256": "12ef2b75345902c9fe851d85e09c4b6680a3685669ab4dcd8b827ebaebb46626",
            "id": "IN-MAL-2026-008604",
            "versions": [
                "1.0.0"
            ]
        }
    ],
    "iocs": {
        "domains": [
            "caliber-spinner-finishing.ngrok-free.dev"
        ]
    }
}
References
Credits

Affected packages

PyPI / paysafe-sdk

Package

Name
paysafe-sdk
View open source insights on deps.dev
Purl
pkg:pypi/paysafe-sdk

Affected ranges

Affected versions

1.*
1.0.0

Database specific

source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/paysafe-sdk/MAL-2026-6929.json"
indicators 
{
    "evidence_files": [
        {
            "sha256": "bb6959b508946c4238ec15367822150d16bfc2b49f994cfdfe5c7957d9caccfb",
            "tlsh": "98d0a7a222861535b58286c9441952d291bed90128c7105dca670ac9128a39f037503d",
            "path": "PKG-INFO"
        },
        {
            "sha256": "dabb47d75f2efa6a5540661484efa989ccb338f24938b23152f14f3e424b0cb5",
            "path": "paysafe_sdk/__init__.py",
            "tlsh": "923186d12850744a91662e1b948d6984a34ffd000cafde4bfbb0aa56ae80673c538d28"
        }
    ],
    "package_integrity": [
        {
            "filename": "paysafe_sdk-1.0.0-py3-none-any.whl",
            "hashes": {
                "blake2b_256": "3cfd0d03737f02ae7a7404eb7e377c00c6b765bce1df17d5c9f3088a9a40872a",
                "sha256": "0b684af6f8964d139db33c0e8407de01662481e368b007f45e427200def07875",
                "md5": "2224e4dc9b583d2dde4297104d67d79e"
            }
        },
        {
            "filename": "paysafe_sdk-1.0.0.tar.gz",
            "hashes": {
                "blake2b_256": "856a25ea071feee99f28fa51f625ac29b087ac0f02826ff22ec79a819b60bb74",
                "sha256": "cdfbe68738a4fe030799087370547ac5907295b696dcbe0509f784d7c3cee400",
                "md5": "6ab050d778b7423de2deb68badd36df4"
            }
        }
    ]
}
cwes 
[
    {
        "name": "Embedded Malicious Code",
        "description": "The product contains code that appears to be malicious in nature.",
        "cweId": "CWE-506"
    }
]