{"id":"MAL-2026-18292","revision":null,"records":[{"revision":"99e90a55eeef4e0c8588eff9a149fc23","observedAt":"2026-10-25T17:10:02.587+00:00","statement":{"source":"osv","id":"MAL-2026-18292","aliases":[],"title":"Malicious code in event-bus-lite-testmetest (npm)","description":"\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (038b62e6040cef7e651f3cf89c146290f391c28977fe206410408e85ccbe4721)\nThe package ships a binding.gyp whose target has type \"none\" and no C/C++ source files; its only purpose is a GYP `<!(...)` command-expansion that runs `node index.js` during the automatic `node-gyp rebuild` triggered by `npm install`. index.js is multi-layer obfuscated: a char-code array is Caesar-decoded (shift 21) and passed to eval; the decoded body reads the bundled lib_native.dat (~312 KB, high-entropy, sha256 e1ab1e330d3db532d511d4af4386ab2d2c6245ca807410f51c1211ae48814d73), brotli-decompresses and AES-128-GCM-decrypts it with hardcoded key/IV/AAD, writes the plaintext to a `mkdtempSync('.b-')/index.js` temp path, and spawns the Bun runtime (`Bun.spawn`, or `getBunPath()` via child_process.spawn) to execute the decrypted payload. Executing under Bun bypasses Node-only analysis. The contents of the executed payload are not inspectable from the shipped artifact.\n","state":0,"publishedAt":"2026-10-25T16:02:07+00:00","modifiedAt":"2026-10-25T16:30:04.5317899+00:00","affected":[{"ecosystem":"npm","name":"event-bus-lite-testmetest","ranges":[],"versions":["0.0.6"],"rawVersionEvidence":null}],"metrics":[],"references":["https://www.npmjs.com/package/event-bus-lite-testmetest/v/0.0.6"],"sourceUrl":"https://osv.dev/vulnerability/MAL-2026-18292","license":"OSV · upstream source license applies","key":"osv:MAL-2026-18292","identifiers":["MAL-2026-18292"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. Missing entries do not establish absence of exploitation.","generation":"2026-10-26T09:13:13.7698329+00:00","complete":true,"records":1756,"lastAttemptAt":"2026-10-26T09:13:13.7698329+00:00","lastSuccessAt":"2026-10-26T09:13:14.1014039+00:00","error":null,"lastVerifiedAt":"2026-10-26T09:13:14.1014063+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-5ba1945314e042c2ced14b33f3680fa71692812d925544312b218f5eb8a26e71-4dbc06e87b01cba3b2ae9184ee52a2806073d7be38fe130cc215e21c2dd243d1","complete":true,"records":414101,"lastAttemptAt":"2026-10-26T09:13:10.3748977+00:00","lastSuccessAt":"2026-10-26T09:13:10.3513809+00:00","error":null,"lastVerifiedAt":"2026-10-26T09:13:10.3748977+00:00","snapshotPublishedAt":"2026-10-26T08:35:03+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":"2026-10-26T09:13:23.1227723+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":"2026-10-26T09:13:13.7698329+00:00","complete":true,"records":1093,"lastAttemptAt":"2026-10-26T09:13:13.7698329+00:00","lastSuccessAt":"2026-10-26T09:13:19.6053265+00:00","error":null,"lastVerifiedAt":"2026-10-26T09:13:19.605328+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":"2026-10-26T09:13:20.3988442+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":"2026-10-26T09:13:13.3411119+00:00","lastSuccessAt":"2026-10-24T13:19:53.1346702+00:00","error":null,"lastVerifiedAt":"2026-10-26T09:13:13.3411119+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":"2026-10-26T09:13:12.027214+00:00","lastSuccessAt":"2026-10-23T16:01:26.4487605+00:00","error":null,"lastVerifiedAt":"2026-10-26T09:13:12.027214+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":"2026-10-26T09:13:13.6663559+00:00","lastSuccessAt":"2026-10-24T13:19:59.1145547+00:00","error":null,"lastVerifiedAt":"2026-10-26T09:13:13.6663559+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":"2026-10-26T09:13:12.9372876+00:00","lastSuccessAt":"2026-10-26T08:22:30.1390577+00:00","error":null,"lastVerifiedAt":"2026-10-26T09:13:12.9372876+00:00","snapshotPublishedAt":"2026-10-26T07:48:28+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null}]}