ts-elinter

{"modified":"2026-07-01T20:28:27Z","published":"2026-07-01T20:28:27Z","schema_version":"1.7.4","id":"MAL-2026-6720","summary":"Malicious code in ts-elinter (npm)","details":"\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (ce2fcb236f368214aa75fe60d233081a72077737e856e403c15d44fe9c940767)\nOn `npm install`, the package's postinstall script (scripts/install-check.cjs) fetches a JSON pointer from https://trabalhos-flax.vercel.app/config/clob-math.json, downloads the referenced.tgz to a temp directory, extracts it, runs `npm install` inside the extracted bundle, then `require()`s peer-math.js and invokes syncSession(). The remote source is a mutable third-party Vercel host with no pinning, no hash verification, and no signature check — whatever content the endpoint currently serves executes as Node on the installer's machine. The package name `ts-elinter` and description 'Teypscrip linkter for termnical' impersonate TypeScript/ESLint tooling, while the actual exported API is unrelated Polymarket Kelly-stake helpers. Cover-story naming (`peer-math.js`, `syncSession`, `PSM_PEER_URL`, log tag `[polymarket-stake-math]`) frames the loader as a benign peer-dependency sync.\n","affected":[{"package":{"ecosystem":"npm","name":"ts-elinter"},"versions":["3.3.9"],"database_specific":{"cwes":[{"cweId":"CWE-506","description":"The product contains code that appears to be malicious in nature.","name":"Embedded Malicious Code"}],"indicators":{"evidence_files":[{"path":"scripts/install-check.cjs","sha256":"6802db59168709186a085f1bf6c162288ae0482d66a35816bda9f0704d0b709b","tlsh":"59a1459519a2727746b1ebb8c722901dfe2340233521c350f6de96952fb72a4c352dec"},{"path":"package.json","sha256":"31657d1ba20e0d6d4e0bbd3f7b808afd671c4390a4a37fde7e11dbf7effb253f","tlsh":"59f08b37ded04d3328b88a194d695104f0654f5f22b08c07b0bb600c0fb22b3088b32a"}],"package_integrity":[{"filename":"ts-elinter-3.3.9.tgz","hashes":{"sha1":"cf557a2b2ae89a2d39d999e88e3fd1339ccfb29a","sha512_sri":"sha512-JK9gldbmVAZGJ5KkgKPTrQU1SZQeM05XM3VHcTBrN57DY/R9oLXejEFrk0rXqRj7gtXSXsVEJR9Y1TlehEPAHg=="}}]}}}],"references":[{"type":"PACKAGE","url":"https://www.npmjs.com/package/ts-elinter/v/3.3.9"}],"credits":[{"name":"Amazon Inspector","type":"FINDER","contact":["inspector-research@amazon.com"]}],"database_specific":{"malicious-packages-origins":[{"id":"IN-MAL-2026-007879","import_time":"2026-07-01T21:04:19.66317529Z","modified_time":"2026-07-01T20:28:27Z","sha256":"ce2fcb236f368214aa75fe60d233081a72077737e856e403c15d44fe9c940767","source":"amazon-inspector","versions":["3.3.9"]}]}}