{"id":"MAL-2026-18289","revision":null,"records":[{"revision":"3a8a170c4e5344f4aa4ba172604cbfce","observedAt":"2026-10-25T16:17:16.268+00:00","statement":{"source":"osv","id":"MAL-2026-18289","aliases":[],"title":"Malicious code in paychex-pdftron (npm)","description":"\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (d32ec8b2ca67156d94943a27b9b7c98f1888d530d7a6f947e49b40f52ec054b3)\npaychex-pdftron@99.9.1 ships an empty stub (module.exports = {}) and declares its sole dependency `ltidisafe` as a bare HTTPS tarball URL (https://ltidi.storage.googleapis.com/depenconf/ltidisafe-4.0.5.tgz) rather than a registry version range. On `npm install`, npm fetches whatever bytes that URL returns and installs the resulting package, executing any lifecycle scripts it contains — with no version pin, no integrity hash, and no signature verification. The package name resembles an internal Paychex scope, the version is an implausibly high `99.9.1` (a dependency-confusion resolution tactic), the URL path segment is `depenconf`, and the host is unrelated to any legitimate Paychex or pdftron domain. The manifest alone is the attack surface: resolving this dependency pulls attacker-controlled code into the installer's build environment.\n","state":0,"publishedAt":"2026-10-25T14:42:30+00:00","modifiedAt":"2026-10-25T15:30:04.5352944+00:00","affected":[{"ecosystem":"npm","name":"paychex-pdftron","ranges":[],"versions":["99.9.1"],"rawVersionEvidence":null}],"metrics":[],"references":["https://www.npmjs.com/package/paychex-pdftron/v/99.9.1"],"sourceUrl":"https://osv.dev/vulnerability/MAL-2026-18289","license":"OSV · upstream source license applies","key":"osv:MAL-2026-18289","identifiers":["MAL-2026-18289"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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Not a global EPSS backfill.","generation":"2026-10-26T08:22:31.5744378+00:00","complete":true,"records":1093,"lastAttemptAt":"2026-10-26T08:22:31.5744378+00:00","lastSuccessAt":"2026-10-26T08:22:31.7471397+00:00","error":null,"lastVerifiedAt":"2026-10-26T08:22:31.7471404+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":"2026-10-26T08:22:32.3026766+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":"2026-10-26T08:22:31.5153923+00:00","lastSuccessAt":"2026-10-24T13:19:53.1346702+00:00","error":null,"lastVerifiedAt":"2026-10-26T08:22:31.5153923+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":"2026-10-26T08:20:52.7776084+00:00","lastSuccessAt":"2026-10-23T16:01:26.4487605+00:00","error":null,"lastVerifiedAt":"2026-10-26T08:20:52.7776084+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":"2026-10-26T08:22:31.531764+00:00","lastSuccessAt":"2026-10-24T13:19:59.1145547+00:00","error":null,"lastVerifiedAt":"2026-10-26T08:22:31.531764+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":"2026-10-26T08:22:31.3932452+00:00","lastSuccessAt":"2026-10-26T08:22:30.1390577+00:00","error":null,"lastVerifiedAt":"2026-10-26T08:22:31.3932452+00:00","snapshotPublishedAt":"2026-10-26T07:48:28+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null}]}