{"id":"MAL-2026-18356","aliases":[],"title":"Malicious code in @webapp-shared/login-vmok (npm)","titleSource":"OSV","descriptionSource":"OSV","description":"@webapp-shared/login-vmok is a dependency-confusion package: it uses the `@webapp-shared` scope, which matches a private internal package scope, and was published on 2026-10-27 in versions 1.0.0, 1.0.1, 1.1.0, 2.0.1, 3.0.0 and 99.0.1 so that builds resolving the internal name from the public registry install it instead. Its `postinstall` script runs `node beacon.cjs`, which sends an HTTP POST over cleartext HTTP to the hardcoded IP endpoint `http://13.140.137.222:8787/_ah/dc` with the package name, the machine's hostname, the install directory, the current working directory and the Node.js version; the entry point `index.js` sends the same request again whenever the package is loaded and otherwise has no functionality. The beacon code is the same as in other dependency-confusion packages sending to `http://185.158.107.175:8787/_ah/dc` (e.g. MAL-2026-18276), with only the endpoint and package name changed. The inert `0.0.0-stage` and `0.1.0` placeholder versions carry no install script and are not affected. Any machine that installed an affected version has disclosed its hostname and filesystem layout to a third party; remove the package, pin or scope internal package names to the internal registry, and block 13.140.137.222 on build hosts.","severity":"unknown","score":null,"published":"2026-10-27T17:08:01.000Z","modified":"2026-10-28T06:30:05.011Z","withdrawn":false,"knownExploited":false,"affected":[{"ecosystem":"npm","name":"@webapp-shared/login-vmok","sources":[{"name":"OSV · MAL-2026-18356","url":"https://osv.dev/vulnerability/MAL-2026-18356"}],"ranges":[],"versions":["1.0.0","1.0.1","1.1.0","2.0.1","3.0.0","99.0.1"],"fixed":[]}],"sourceAffected":[],"references":["https://www.npmjs.com/package/@webapp-shared/login-vmok"],"sources":[{"name":"OSV","id":"MAL-2026-18356","modified":"2026-10-28T06:30:05.011100750Z","url":"https://osv.dev/vulnerability/MAL-2026-18356"}],"assessments":[],"products":[],"remediation":[],"kev":{"status":"unavailable","checkedAt":"2026-10-28T20:15:32.897Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[]}