{"id":"MAL-2026-18319","revision":null,"records":[{"revision":"676eebc30f7a49239f3797a8b5e9b410","observedAt":"2026-10-26T06:21:11.187+00:00","statement":{"source":"osv","id":"MAL-2026-18319","aliases":[],"title":"Malicious code in @sxm-web/client-sdk-core (npm)","description":"@sxm-web/client-sdk-core is a dependency-confusion package: it is described as a \"Compatibility shim\", uses inflated version numbers, and its README calls it an \"authorized dependency-confusion test\". Each listed version (0.0.1, 1.0.0, 1.0.1, 2.0.0, 1.1.0, 3.0.0, 13.3.7) has a postinstall script that runs `node beacon.cjs` on npm install, and index.js calls the same code when the package is imported; it POSTs the hostname, install path and current working directory over plain HTTP to `http://185.158.107.175:8787/_ah/dc`, and index.js exports a Proxy that returns no-op functions so builds importing the real package keep running. The npm account wiseke published 14 such packages under the @greenlake, @sxm-web, @drone-js-ext and @ppa-web-components scopes between 2026-10-23 21:23 and 2026-10-25 14:28 UTC; index.js is byte-identical to that of ph-common (MAL-2026-1809), which sends to the same endpoint.\n\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (8d53280e50e3f0ad06e3ab6e3685856cd774465fd6d4461d64e22caad4ee94fc)\n@sxm-web/client-sdk-core@1.0.1 is a stub package whose only functional code is a beacon. The declared postinstall script runs `node beacon.cjs`, and the same beacon is also invoked at require time from index.js. The beacon collects installer-side identifiers (hostname, install path, current working directory, Node.js version, package name) and POSTs them in cleartext over plain HTTP to the hardcoded bare-IP endpoint http://185.158.107.175:8787/_ah/dc, which is unrelated to any legitimate registry or publisher infrastructure. The package's `main` returns a Proxy that produces no-op functions for every accessed property, so the package provides no advertised functionality — the install itself is the payload. The scoped name `@sxm-web/client-sdk-core` combined with a `Compatibility shim` description is consistent with a dependency-confusion probe aimed at an internal/private SDK namespace, where the beacon's purpose is to confirm successful resolution against private names and to disclose the resolving host's identity and filesystem layout to the operator at the bare IP.\n","state":0,"publishedAt":"2026-10-23T23:04:22+00:00","modifiedAt":"2026-10-26T06:00:04.207281+00:00","affected":[{"ecosystem":"npm","name":"@sxm-web/client-sdk-core","ranges":[],"versions":["0.0.1","1.0.0","1.0.1","2.0.0","1.1.0","3.0.0","13.3.7"],"rawVersionEvidence":null}],"metrics":[],"references":["https://www.npmjs.com/package/@sxm-web/client-sdk-core","https://www.npmjs.com/package/@sxm-web/client-sdk-core/v/2.0.0","https://www.npmjs.com/package/@sxm-web/client-sdk-core/v/1.0.1","https://www.npmjs.com/package/@sxm-web/client-sdk-core/v/1.0.0","https://www.npmjs.com/package/@sxm-web/client-sdk-core/v/0.0.1","https://www.npmjs.com/package/@sxm-web/client-sdk-core/v/3.0.0","https://www.npmjs.com/package/@sxm-web/client-sdk-core/v/13.3.7","https://www.npmjs.com/package/@sxm-web/client-sdk-core/v/1.1.0"],"sourceUrl":"https://osv.dev/vulnerability/MAL-2026-18319","license":"OSV · upstream source license applies","key":"osv:MAL-2026-18319","identifiers":["MAL-2026-18319"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. Missing entries do not establish absence of exploitation.","generation":"2026-10-26T10:13:07.6997575+00:00","complete":true,"records":1756,"lastAttemptAt":"2026-10-26T10:13:07.6997575+00:00","lastSuccessAt":"2026-10-26T10:13:07.8601918+00:00","error":null,"lastVerifiedAt":"2026-10-26T10:13:07.8601939+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null},{"source":"cve-program","scope":"Official CVE Program baseline and cumulative hourly delta; all vendors, published and rejected records","generation":"cve-5ba1945314e042c2ced14b33f3680fa71692812d925544312b218f5eb8a26e71-2ce4e71b5c377952ee822301ac3737abb16ddc46e7e170572868997851a0ce5b","complete":true,"records":414122,"lastAttemptAt":"2026-10-26T10:13:06.6299129+00:00","lastSuccessAt":"2026-10-26T10:13:06.5969582+00:00","error":null,"lastVerifiedAt":"2026-10-26T10:13:06.6299129+00:00","snapshotPublishedAt":"2026-10-26T09:37:23+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null},{"source":"euvd","scope":"Rolling EUVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-43321610382942b8ad8c85917eab1546","complete":false,"records":4735,"lastAttemptAt":"2026-10-26T10:13:10.3623005+00:00","lastSuccessAt":"2026-10-24T23:18:49.862+00:00","error":"InvalidDataException","lastVerifiedAt":"2026-10-24T23:18:49.862+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":4764,"expectedIdentifiers":13474},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-10-26T10:13:07.6997575+00:00","complete":true,"records":1093,"lastAttemptAt":"2026-10-26T10:13:07.6997575+00:00","lastSuccessAt":"2026-10-26T10:13:07.8614935+00:00","error":null,"lastVerifiedAt":"2026-10-26T10:13:07.8614941+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-204a3fb93a00487e8f7f36db01dc851d","complete":true,"records":13413,"lastAttemptAt":"2026-10-26T10:13:08.4268574+00:00","lastSuccessAt":"2026-10-25T16:19:28.681+00:00","error":null,"lastVerifiedAt":"2026-10-25T16:19:28.681+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13474,"expectedIdentifiers":13474},{"source":"osv:Go","scope":"Complete OSV Go ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"go-2375a4e597279abf92e8747e140fe8da9d421877cd49cae3ac69a2cb78469b2c","complete":true,"records":9779,"lastAttemptAt":"2026-10-26T10:13:07.2730799+00:00","lastSuccessAt":"2026-10-24T13:19:53.1346702+00:00","error":null,"lastVerifiedAt":"2026-10-26T10:13:07.2730799+00:00","snapshotPublishedAt":"2026-10-24T03:03:12+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null},{"source":"osv:NuGet","scope":"Complete OSV NuGet ecosystem archive, including GitHub Advisory Database records; NuGet version matching only","generation":"nuget-16ad89dfea13ab9e9b0108e63a759d63bd4559cc68b58491107d62ee35bbbaf2","complete":true,"records":1965,"lastAttemptAt":"2026-10-26T10:13:06.7795329+00:00","lastSuccessAt":"2026-10-23T16:01:26.4487605+00:00","error":null,"lastVerifiedAt":"2026-10-26T10:13:06.7795329+00:00","snapshotPublishedAt":"2026-10-21T12:18:07+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null},{"source":"osv:crates.io","scope":"Complete OSV crates.io ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"crates.io-7da67a15aa6e56a0e3081a7646dc74d537e6ef974afc593c2b1794ed01970648","complete":true,"records":2969,"lastAttemptAt":"2026-10-26T10:13:07.6589842+00:00","lastSuccessAt":"2026-10-24T13:19:59.1145547+00:00","error":null,"lastVerifiedAt":"2026-10-26T10:13:07.6589842+00:00","snapshotPublishedAt":"2026-10-24T08:47:51+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null},{"source":"osv:npm","scope":"Complete OSV npm ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"npm-654e90fb44abcd729ddecf56d54c1b46ce87ca3181850e8bc65d5c8befceb659","complete":true,"records":230805,"lastAttemptAt":"2026-10-26T10:13:07.1710504+00:00","lastSuccessAt":"2026-10-26T08:22:30.1390577+00:00","error":null,"lastVerifiedAt":"2026-10-26T10:13:07.1710504+00:00","snapshotPublishedAt":"2026-10-26T07:48:28+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null}]}