MAL-2026-15598

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/verify-contract-ethers/MAL-2026-15598.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-15598
Aliases
  • GHSA-cvw4-2h4c-hm3f
Published
2026-08-30T08:40:44Z
Modified
2026-09-03T06:00:07Z
Summary
Malicious code in verify-contract-ethers (npm)
Details

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

Source: amazon-inspector (ec7cfabb396e93e034caeb560ea029e3ca2bde784b8c713d5f8941a2b621dd36)

The package ships a single bin entry (bin/cli.js) that, when invoked, runs whoami and POSTs the package name, username, hostname, and platform to a hardcoded Cloudflare Workers callback at https://oobme.kunalsharma0553.workers.dev/r/7bq6fz3l15r9. The bin is registered under the name fuels-typegen while the package itself is published as verify-contract-ethers, a name/bin mismatch consistent with typosquatting or dependency-confusion against fuels-typegen / verify-contract. The package's declared description openly states its purpose is to POST package name and whoami to an out-of-band callback, and no legitimate functionality is present beyond that beacon.

Source: ghsa-malware (ebb5addb0766ceaafe0072a3e0365aa2c63682603a44c2fb9e795c3e452938db)

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.

Source: ossf-package-analysis (dd92ae4a5555d9abe274ad50e627402e6fcba1b9486f0f565dd2a11920417532)

The OpenSSF Package Analysis project identified 'verify-contract-ethers' @ 1.0.0 (npm) as malicious.

It is considered malicious because:

  • The package communicates with a domain associated with malicious activity.

  • The package executes one or more commands associated with malicious behavior.

Database specific 
{
    "malicious-packages-origins":  [
        {
            "import_time":  "2026-08-30T23:14:55.508435771Z",
            "modified_time":  "2026-08-30T08:40:44Z",
            "sha256":  "dd92ae4a5555d9abe274ad50e627402e6fcba1b9486f0f565dd2a11920417532",
            "source":  "ossf-package-analysis",
            "versions":  [
                "1.0.0"
            ]
        },
        {
            "id":  "IN-MAL-2026-019184",
            "import_time":  "2026-08-31T17:16:15.233354795Z",
            "modified_time":  "2026-08-31T16:50:35Z",
            "sha256":  "ec7cfabb396e93e034caeb560ea029e3ca2bde784b8c713d5f8941a2b621dd36",
            "source":  "amazon-inspector",
            "versions":  [
                "1.0.0"
            ]
        },
        {
            "id":  "GHSA-cvw4-2h4c-hm3f",
            "import_time":  "2026-09-03T05:28:34.931369Z",
            "modified_time":  "2026-09-01T22:42:24Z",
            "ranges":  [
                {
                    "events":  [
                        {
                            "introduced":  "0"
                        }
                    ],
                    "type":  "SEMVER"
                }
            ],
            "sha256":  "ebb5addb0766ceaafe0072a3e0365aa2c63682603a44c2fb9e795c3e452938db",
            "source":  "ghsa-malware"
        }
    ]
}
References
Credits

Affected packages

npm / verify-contract-ethers

Package

Name
verify-contract-ethers
View open source insights on deps.dev
Purl
pkg:npm/verify-contract-ethers

Affected ranges

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

Affected versions

1.*
1.0.0

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"
    }
]
indicators 
{
    "evidence_files":  [
        {
            "path":  "bin/cli.js",
            "sha256":  "7bb9e78369c5381ad92a3997176d860469dcbd35fef2d80123dadf978eb15649",
            "tlsh":  "94112dea50f553b0bfa22c944d2f50003297c7673c09fcc0faac0359af4ea5c41325a8"
        },
        {
            "path":  "package.json",
            "sha256":  "152edeab11c2356848d2f9c007d45e6756884fbfc6ca403f131a82d87c459ba7",
            "tlsh":  "bfe061508b211de314dc5ef11c3a96175221e86b106c7d6632d7330d43492721237379"
        }
    ],
    "package_integrity":  [
        {
            "filename":  "verify-contract-ethers-1.0.0.tgz",
            "hashes":  {
                "sha1":  "0c02b8afe28c67e47a8b11d5f29662ee1668e268",
                "sha512_sri":  "sha512-1+gCTH00KByKs/77VMf0cOwMY4lJH4WErHsS6AWBHhUYifuxB0TQSdMdv3diNkr8HZdxPMz4m/9HwfKRX7C9rA=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/verify-contract-ethers/MAL-2026-15598.json"