MAL-2026-18459

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/wallet-adapter-base/MAL-2026-18459.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-18459
Published
2026-11-01T21:33:18Z
Modified
2026-11-02T06:30:05Z
Summary
Malicious code in wallet-adapter-base (npm)
Details

wallet-adapter-base takes the unscoped name of @solana/wallet-adapter-base and has no functional code. Its preinstall script runs node preinstall.js on npm install, which POSTs the machine's hostname, the OS username and the local time to the Discord webhook https://canary.discord.com/api/webhooks/1566232728179843243/pM5rDIrCRrEpQRbA7ibaiQk1XOQlIftmBacA5s8jD8NvXn5W-rS832DOWHQS-G-j3N6U as "PC Notifier". It was published by the npm account cutekitten05, which published axelarjs-sdk, cutekitten-test, bigbob22-test and sol-wallet-adapter with the same script on 2026-11-01.

Database specific 
{
    "iocs":  {
        "files":  [
            {
                "digests":  {
                    "sha256":  "50d055feee2beeea222a96d191734adef75612a035c2284d1c307290af7872e9"
                },
                "note":  "preinstall runs `node preinstall.js`, which POSTs hostname and username to a Discord webhook (wallet-adapter-base@1.0.0).",
                "paths":  [
                    "package.json"
                ],
                "source":  "PACKAGE_ARCHIVE"
            },
            {
                "digests":  {
                    "sha256":  "d2709b8afcf5e5e2859d0b56c8f119b73c98fc56c32fb072baea5b51b1cc3554"
                },
                "note":  "Executed by the preinstall script of wallet-adapter-base@1.0.0.",
                "paths":  [
                    "preinstall.js"
                ],
                "source":  "PACKAGE_ARCHIVE"
            }
        ],
        "urls":  [
            "https://canary.discord.com/api/webhooks/1566232728179843243/pM5rDIrCRrEpQRbA7ibaiQk1XOQlIftmBacA5s8jD8NvXn5W-rS832DOWHQS-G-j3N6U"
        ]
    }
}
References
Credits

Affected packages

npm / wallet-adapter-base

Package

Name
wallet-adapter-base
View open source insights on deps.dev
Purl
pkg:npm/wallet-adapter-base

Affected ranges

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"
    }
]
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/wallet-adapter-base/MAL-2026-18459.json"