{"id":"MAL-2026-16062","revision":null,"records":[{"revision":"b2f86d35fb004f2c9e9ebe7f025512bd","observedAt":"2026-10-24T13:17:17.793+00:00","statement":{"source":"osv","id":"MAL-2026-16062","aliases":[],"title":"Malicious code in @yongot/canary-mcp-test (npm)","description":"\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (b93b70d19f6065f9757e39a5d7f799ca9cfff26e2c47b6e4c51012a104885578)\nPackage @yongot/canary-mcp-test@2.0.0 ships beacon.js which runs `execSync('id')`, reads `os.hostname()`, and issues an HTTPS GET to a hardcoded webhook.site collector (https://webhook.site/b76376f8-118e-44f1-a5ee-8a73f55b137b) with stage, host, and id_output query parameters. The package.json postinstall hook invokes `node beacon.js postinstall`, so the beacon fires automatically on `npm install`. index.js (the package main) also requires beacon.js twice at load time, so any consumer that imports the package re-triggers the same exfiltration of the installer's Unix uid/gid/groups and hostname to the third-party webhook collector.\n","state":0,"publishedAt":"2026-09-09T01:40:56+00:00","modifiedAt":"2026-09-17T15:30:06.1752049+00:00","affected":[{"ecosystem":"npm","name":"@yongot/canary-mcp-test","ranges":[],"versions":["3.0.0","2.0.0","4.0.0","1.0.0"],"rawVersionEvidence":null}],"metrics":[],"references":["https://www.npmjs.com/package/@yongot/canary-mcp-test/v/3.0.0","https://www.npmjs.com/package/@yongot/canary-mcp-test/v/2.0.0","https://www.npmjs.com/package/@yongot/canary-mcp-test/v/4.0.0","https://www.npmjs.com/package/@yongot/canary-mcp-test/v/1.0.0"],"sourceUrl":"https://osv.dev/vulnerability/MAL-2026-16062","license":"OSV · upstream source license applies","key":"osv:MAL-2026-16062","identifiers":["MAL-2026-16062"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. Missing entries do not establish absence of exploitation.","generation":"2026-11-13T07:09:48.0434594+00:00","complete":true,"records":1779,"lastAttemptAt":"2026-11-13T07:09:48.0434594+00:00","lastSuccessAt":"2026-11-13T07:09:48.3275958+00:00","error":null,"lastVerifiedAt":"2026-11-13T07:09:48.3277431+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"cve-program","scope":"Official CVE Program baseline and cumulative hourly delta; all vendors, published and rejected records","generation":"cve-d8fa82e95fdb59244e2f635e667ba17f0796ca0a4f1f4bb8cc31febcd660b76c-c5309b25400581525e35b5d686fde5eb801ba52451edf64385de1067c7c5e97b","complete":true,"records":424978,"lastAttemptAt":"2026-11-13T07:09:47.3634648+00:00","lastSuccessAt":"2026-11-13T06:55:18.981967+00:00","error":null,"lastVerifiedAt":"2026-11-13T07:09:47.3634648+00:00","snapshotPublishedAt":"2026-11-13T06:26:49+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"euvd","scope":"Rolling EUVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. 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