Malicious code in paychex-pdftron (npm)

CISA KEV is observed exploitation evidence. FIRST EPSS is a dated prediction of exploitation in the next 30 days. Missing scores are unknown. This collector requests predictions only for explicit CVE aliases in the public NuGet archive; Microsoft release views retain their existing prediction scope.

No collected risk observation for these identifiers. This does not establish absence of exploitation or a zero probability.

--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (d32ec8b2ca67156d94943a27b9b7c98f1888d530d7a6f947e49b40f52ec054b3) [email protected] 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.

Source published

25 Oct 2026 14:42:30 UTC

Source modified

25 Oct 2026 15:30:04 UTC

Observed here

25 Oct 2026 16:17:16 UTC

Source terms

OSV · upstream source license applies

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: osv · OSV · upstream source license applies. Source text is retained; field grouping and change labels are provided by ChangeIntel.