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Malicious code in @sourceflow-uk/sourceflow-tracker (npm)

Type: advisorySource: OSV1 source record

--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (c5bcccc37c380ce54f5bfc2bc2311fbefb6ebc3400a397cbc4afc2188fb3c11d) package.json declares a dependency `ltidisafe` whose version specifier is the raw URL `https://storage.googleapis.com/lscunpentest/pack_ux_foundry.tgz` — a tarball hosted on a generic Google Cloud Storage bucket unrelated to the package's nominal publisher (@sourceflow-uk). On `npm install`, npm fetches and installs that tarball as a transitive dependency, executing any lifecycle scripts (preinstall/install/postinstall) it contains on the installer's machine. The URL is not version-pinned, not hash-verified, and not under the publisher's control: the bucket owner can swap the tarball contents at any time, so a future install delivers different bytes than a present install with no package change. The wrapper package itself is hollow — `index.js` only runs `console.log("hello from lslslslslss")`, the description is the garbled string `lspodcc`, the author is `lslsls`, and the version is `99.91.9`. These attributes are inconsistent with the advertised "sourceflow tracker" functionality and consistent with a throwaway lure whose sole purpose is to chain-load the third-party tarball into the installer's dependency tree. ## Source: ghsa-malware (e2c0d8ba218fdd8cf21875456495b5bc251a89f70737fec9a44416fda6f19ee7) Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stor

Announced Source revision 1
Original source ↗

MAL-2026-5430

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:MAL-2026-5430

@sourceflow-uk/sourceflow-tracker

Source reference: /affected/0/package/name

Affected versions
99.91.9

Source reference: /affected/0/versions

Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "ranges": [
      {
        "type": "SEMVER",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "@sourceflow-uk/sourceflow-tracker",
      "purl": "pkg:npm/%40sourceflow-uk/sourceflow-tracker",
      "ecosystem": "npm"
    },
    "versions": [
      "99.91.9"
    ],
    "database_specific": {
      "cwes": [
        {
          "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."
        }
      ],
      "source": "https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@sourceflow-uk/sourceflow-tracker/MAL-2026-5430.json",
      "indicators": {
        "domains": [
          "storage.googleapis.com",
          "10.201.176.2.ux-foundry.wwwz15e554m201wwajfl7m1ey54z1nq.oastify.com",
          "7363616e2d386661393038626631316461.ux-foundry.wwwz15e554m201wwajfl7m1ey54z1nq.oastify.com",
          "2f686f6d652f7363616e.ux-foundry.wwwz15e554m201wwajfl7m1ey54z1nq.oastify.com"
        ],
        "evidence_files": [
          {
            "path": "package.json",
            "tlsh": "39e0df28995255334bc942e64c257827eaa95e0e100c7c0947db212c49deab37dfa36c",
            "sha256": "81ba01b776825d7bd6a7819f656074d826f3861e104328681a21506976f0d491"
          }
        ],
        "package_integrity": [
          {
            "hashes": {
              "sha1": "1740d0d60801b96daa36c0ff3373aeea56ce479b",
              "sha512_sri": "sha512-tsfzUxVKmVCY02W9rN9HIXupUJjBXpiq1dZXNHHcLJ0ButH+05/Ckelw0P4WDrfBj6v481K00vNoa4cx0HqY2w=="
            },
            "filename": "sourceflow-tracker-99.91.9.tgz"
          }
        ]
      }
    }
  }
]

Publisher severity

No explicit severity was provided.

Event
#10881 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement