Logo
npm

bytepack-probe-a7x3@1.0.1

Vulnerability report · Last retrieved from osv.dev September 21, 2026 at 11:45 PM UTC

Malicious

OSV ID

MAL-2026-16364

Ecosystem

npm

Summary

package.json declares a dependency leak-internal whose source is the HTTPS tarball URL https://src-ssrf.bytedance.net/ssrf/probe.tgz rather than a registry version range. On npm install, npm fetches and installs whatever bytes that URL currently returns, executing any lifecycle scripts contained in the fetched tarball. There is no version pin, no integrity hash, and no signature check, so the code executed on the installer's machine is whatever the operator of that host serves at the moment of install. The hostname suggests an SSRF-probe artifact hosted on an internal-looking domain, and the dependency name leak-internal together with the path segment ssrf/probe.tgz indicates the fetched payload is intended to run probing behavior inside the installer's network.

Source: amazon-inspector (1f158536e9d84e6cee18e2a3ce84869e34f1564ec18a1313a9e8c03b304e3d70)

Protect your entire dependency tree

Scan your lock files automatically on every PR. Block malicious packages before they reach production.