{
  "modified": "2026-06-04T23:12:21Z",
  "published": "2026-05-26T00:59:18Z",
  "schema_version": "1.7.4",
  "id": "MAL-2026-4723",
  "summary": "Malicious code in weavedb-sdk (npm)",
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (c25ff456baf684075b65ecf808bbfe36cbf91811fb4b04b70c13a3dd9d8a9403)\npackage.json declares `\"preinstall\": \"./tools/setup\"`, where tools/setup is a 976KB stripped Linux x86-64 ELF binary (sha256 36abd242ddaa27f0160c539377a0e92cf781c1695137850acc87e3892b436d36) shipped directly in the tarball. The package self-describes as a JavaScript SDK for an Arweave-backed database; it has no native component, no binding.gyp, no C/C++/Rust source, and no build system that would justify a precompiled binary. The binary is not fetched from a publisher CDN, not version-pinned, and not hash-verified — it simply runs unconditionally with the installer's privileges on every `npm install`. Strings extracted from the binary include a PuTTY private-key header (`BEGINPRIV...KEYPuTTY-`), `RSA_PKCS1_`, `Ed25519`, `cookie`, `Authorization`, `HTTP/1.1`, `POST`, `XMLH` (XMLHttpRequest), `USERPROFILE`, `HOME`, `/proc`, `id_`, `ssh`, and a second embedded ELF header at offset ~270 (UPX-packed loader pattern). This fingerprint set — SSH/PuTTY private-key parsing primitives + browser cookie/Authorization-header scraping + HTTP POST exfil scaffolding + home-directory and /proc traversal — is the canonical shape of a credential and SSH-key stealer. Installing this package on Linux compromises stored SSH/PuTTY keys, browser session cookies, and any credentials reachable from the user's home directory and environment.\n\n## Source: google-open-source-security (146faaf0d97c6a533a969bc3f3f117811f9317dc865ed4ab37f1679842ddeaae)\nThis package was compromised as part of the IronWorm campaign. This campaign executes a malicious binary payload during installation via a preinstall hook. The payload is a Rust-built infostealer that targets developer environments, scanning for and harvesting credentials related to cloud providers, object storage, databases, source-control, package registries, and AI developer tools. It also targets cryptocurrency wallets, specifically injecting a malicious JavaScript hook into the Exodus desktop wallet to capture passwords and recovery phrases. Furthermore, the malware exhibits worm-like behavior by stealing GitHub and NPM credentials to push malicious updates to the victim's repositories and publish trojanized packages, and it uses an eBPF-based kernel rootkit to hide its processes and network connections on Linux systems.\n",
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "weavedb-sdk"
      },
      "versions": [
        "0.45.3"
      ],
      "database_specific": {
        "cwes": [
          {
            "cweId": "CWE-506",
            "description": "The product contains code that appears to be malicious in nature.",
            "name": "Embedded Malicious Code"
          }
        ],
        "indicators": {
          "evidence_files": [
            {
              "path": "package.json",
              "sha256": "e5316c8599e2913d7fc0464b8adf574aaf793f662308dea1e694e7b6e4caa48c",
              "tlsh": "aa112971dda4deb319e4229864764152726599074d88f8cc33d3e30d8f4cabb217aa6d"
            },
            {
              "path": "tools/setup",
              "sha256": "36abd242ddaa27f0160c539377a0e92cf781c1695137850acc87e3892b436d36",
              "tlsh": "0c2533ab0025062b904d957a58963bd279c17c81afcc3662664dae742fb59c3cf63fc3"
            }
          ],
          "package_integrity": [
            {
              "filename": "weavedb-sdk-0.45.3.tgz",
              "hashes": {
                "sha1": "7750bab1a6c48831b5a889e6b799d1684d0a4f2a",
                "sha512_sri": "sha512-FCBSwsE2Bfl03hau2iW5jFB5Yuaw0Bj6mCS7ir6PEBoEY3cY7iGCHzkFsZZwoFAx6J+gBXEbeTyquC/rh4KR7Q=="
              }
            }
          ]
        }
      }
    }
  ],
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://www.npmjs.com/package/weavedb-sdk/v/0.45.3"
    },
    {
      "type": "ARTICLE",
      "url": "http://www.ox.security/blog/ironworm-supply-chain-malware-hits-npm/"
    },
    {
      "type": "ARTICLE",
      "url": "https://research.jfrog.com/post/iron-worm-shai-hulud-rustier-cousin/"
    }
  ],
  "credits": [
    {
      "name": "Amazon Inspector",
      "type": "FINDER",
      "contact": [
        "actran@amazon.com"
      ]
    }
  ],
  "database_specific": {
    "malicious-packages-origins": [
      {
        "source": "amazon-inspector",
        "sha256": "c25ff456baf684075b65ecf808bbfe36cbf91811fb4b04b70c13a3dd9d8a9403",
        "import_time": "2026-05-26T05:53:19.478332473Z",
        "id": "IN-MAL-2026-004809",
        "modified_time": "2026-05-26T00:59:18Z",
        "versions": [
          "0.45.3"
        ]
      },
      {
        "source": "google-open-source-security",
        "sha256": "146faaf0d97c6a533a969bc3f3f117811f9317dc865ed4ab37f1679842ddeaae",
        "import_time": "2026-06-04T22:42:01.227855Z",
        "modified_time": "2026-06-04T22:28:51.769005667Z",
        "versions": [
          "0.45.3"
        ]
      }
    ]
  }
}