MAL-2026-10670

See a problem?
Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/eslintcmd/MAL-2026-10670.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-10670
Aliases
  • GHSA-73c6-pgjj-9v82
Published
2026-07-15T07:55:08Z
Modified
2026-08-05T07:21:10Z
Summary
Malicious code in eslintcmd (npm)
Details

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

Source: amazon-inspector (2cf4500fbbfc85f42275772210ace6efb69c5f90d9d0a5edd7c0c75fa271f0c3)

The package's postinstall script (scripts/install-check.cjs) fetches a JSON config from https://slimopump.vercel.app/config/clob-math.json, downloads the.tgz referenced by that config, extracts it into a.peer/ directory, runs npm install inside the extracted tree, then require()s peer-math.js from the extracted bundle and invokes syncSession(). No integrity checks (hash/signature) are performed, the config endpoint is mutable and author-controlled, and the tarball URL is not pinned. On npm install eslintcmd, arbitrary code selected by the author executes on the installer's machine. The package name eslintcmd and its stated Polymarket Kelly-math purpose (a trivial ~40-line kelly.js) do not match the install-time behavior, consistent with a cover story around the dropper.

Source: ghsa-malware (00760acbc5304cffff15cc81dc411609ad0d815f16f1cc130da08442f8c53221)

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-2026-010623",
            "import_time": "2026-07-15T08:51:04.405304275Z",
            "modified_time": "2026-07-15T07:55:08Z",
            "sha256": "2cf4500fbbfc85f42275772210ace6efb69c5f90d9d0a5edd7c0c75fa271f0c3",
            "source": "amazon-inspector",
            "versions": [
                "0.2.0"
            ]
        },
        {
            "id": "GHSA-73c6-pgjj-9v82",
            "import_time": "2026-07-30T03:51:56.434745Z",
            "modified_time": "2026-07-29T15:00:27Z",
            "ranges": [
                {
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ],
                    "type": "SEMVER"
                }
            ],
            "sha256": "00760acbc5304cffff15cc81dc411609ad0d815f16f1cc130da08442f8c53221",
            "source": "ghsa-malware"
        },
        {
            "id": "IN-MAL-2026-013316",
            "import_time": "2026-08-05T07:06:41.004077631Z",
            "modified_time": "2026-08-05T06:05:44Z",
            "sha256": "8b53e77485f429f1e114e9f6b5697ba32f79a0e10497400b138b9431238f1a58",
            "source": "amazon-inspector",
            "versions": [
                "0.1.0"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / eslintcmd

Package

Name
eslintcmd
View open source insights on deps.dev
Purl
pkg:npm/eslintcmd

Affected ranges

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

Affected versions

0.*
0.1.0
0.2.0

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"
    }
]
indicators 
{
    "evidence_files": [
        {
            "path": "scripts/install-check.cjs",
            "sha256": "3e15f1692c4075cf29cefa94c84d564a95086ab7a6838a97ea25cd02475a282d",
            "tlsh": "6ad1659915a272770bb0e7a4cb53a41eeb6394233511c364f6cdc6952ff6164c213dec"
        },
        {
            "path": "package.json",
            "sha256": "2b94dd5d587d1e5cd81bdb05cee6dee045b61b79f42d0ab3008a5fd1baaccbab",
            "tlsh": "2df02237d9504e3668b98e994e792640f4690b5f22b04d1bb0bb604c4fb2163049b72a"
        }
    ],
    "package_integrity": [
        {
            "filename": "eslintcmd-0.2.0.tgz",
            "hashes": {
                "sha1": "b08f9687cc140634f9f897d5ca1849fbcb630028",
                "sha512_sri": "sha512-ZR0YnP9VUIXRbN63occfRtbHu7FGyHx3cGwuDAhEVBL7j8zt5oDx2eFmF/voLrOIZ6OK0Inn4qaJbh+DKTrV3A=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/eslintcmd/MAL-2026-10670.json"