MAL-2026-4435

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@service-suppliers/fetch_suppliers_action_saga/MAL-2026-4435.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-4435
Aliases
  • GHSA-2fg8-hcf8-7qjg
Published
2026-05-25T18:07:00Z
Modified
2026-05-28T15:31:49.084948760Z
Summary
Malicious code in @service-suppliers/fetch_suppliers_action_saga (npm)
Details

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

Source: amazon-inspector (8a3ebab0ad45763f2a27f43a1f97a820409b215589a45b5f3928b169ffc062bb)

The postinstall script (scripts/postinstall.js) performs three independent installer-harm actions on npm install. (1) It enumerates process.env for credential-shaped keys (npmtoken, npmconfigauthtoken, githubtoken, awsaccesskeyid, awssecretaccesskey, awssessiontoken, artifactorytoken, nexustoken, nodeauthtoken, npmconfig_auth, etc.), reads ~/.npmrc, /etc/npmrc,./.npmrc, and../.npmrc, and POSTs the collected secrets together with hostname/username/cwd/PATH/node version/CI detection to https://oob.moika.tech/report with a hardcoded X-Secret header. (2) It GETs https://oob.moika.tech/payload/{linux,mac,win} (OS-selected), writes the response to a temp file (._service-suppliers_init.sh or .bat), chmods 0755, and spawns it via /bin/sh or cmd.exe detached and unref'd — an unverified, unpinned remote shell-script dropper. (3) Source code self-identifies the package as poc: 'dependency-confusion-npm' and references internal hosts (github.service-suppliers.io, jira.service-suppliers.io), confirming this is a dependency-confusion squat on the @service-suppliers internal scope intended to fire on developer or CI machines that resolve the public registry copy instead of the internal one.

Source: ghsa-malware (b795759dafea4dfa28be565e80b7de0951529541699ddb26ed44380f58831a01)

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": [
        {
            "modified_time": "2026-05-25T18:07:00Z",
            "versions": [
                "9.9.10"
            ],
            "sha256": "8a3ebab0ad45763f2a27f43a1f97a820409b215589a45b5f3928b169ffc062bb",
            "id": "IN-MAL-2026-004739",
            "source": "amazon-inspector",
            "import_time": "2026-05-26T05:53:11.44360984Z"
        },
        {
            "modified_time": "2026-05-25T18:09:58Z",
            "versions": [
                "9.9.10"
            ],
            "sha256": "f55780a37175c628fd4d5e2fb3f0b73f1aad6a9f274b5f79fe5b8ab5a441e984",
            "id": "IN-MAL-2026-004744",
            "source": "amazon-inspector",
            "import_time": "2026-05-26T05:53:12.045432395Z"
        },
        {
            "modified_time": "2026-05-28T13:39:51Z",
            "ranges": [
                {
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ],
                    "type": "SEMVER"
                }
            ],
            "sha256": "b795759dafea4dfa28be565e80b7de0951529541699ddb26ed44380f58831a01",
            "id": "GHSA-2fg8-hcf8-7qjg",
            "source": "ghsa-malware",
            "import_time": "2026-05-28T15:25:19.313337124Z"
        }
    ]
}
References
Credits

Affected packages

npm / @service-suppliers/fetch_suppliers_action_saga

Package

Name
@service-suppliers/fetch_suppliers_action_saga
View open source insights on deps.dev
Purl
pkg:npm/%40service-suppliers%2Ffetch_suppliers_action_saga

Affected ranges

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

Affected versions

9.*
9.9.10

Database specific

indicators 
{
    "domains": [
        "oob.moika.tech"
    ],
    "evidence_files": [
        {
            "sha256": "3e440378b9a88bfc264648862c302c043fe14f32796d0196d69c927bd42861db",
            "tlsh": "88d1dcdb22f7513507d6a5ea991f6002d633b1033906f8e0f66c51005f8aa7c8273eed",
            "path": "scripts/postinstall.js"
        }
    ],
    "package_integrity": [
        {
            "hashes": {
                "sha512_sri": "sha512-RK/iaVCqbXEg5LWgl40acqfGiUgBsnndX6EqRd6YsslT4CX/O2T/eAgqy99+E0lGX7Ras9imO6hDSdzuBhGcNw==",
                "sha1": "ea75d3044ec9620886acba9e0a0bd2772a6eebb7"
            },
            "filename": "fetch_suppliers_action_saga-9.9.10.tgz"
        }
    ]
}
cwes 
[
    {
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code",
        "cweId": "CWE-506"
    },
    {
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code",
        "cweId": "CWE-506"
    }
]
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@service-suppliers/fetch_suppliers_action_saga/MAL-2026-4435.json"