CVE Catalog

CVE-2026-116673

LowCVSS 3.3
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.13%

2th percentile - higher than 2% of all known CVEs

Summary

In the systeminformation library for Node.js before 5.33.14, the Linux `networkStats(iface)` implementation uses the caller-supplied interface value in an `fs.existsSync()` check and to build `/sys/class/net/<iface>` paths without verifying it is a single interface-name segment or that the resolved path stays under `/sys/class/net`. An attacker controlling `iface` can use parent-directory components and symlink traversal to make the API return the first line of a file readable by the Node.js process. This requires local filesystem setup; the issue is fixed in 5.33.14.

Risk Assessment

The flaw allows limited information disclosure from files readable by the Node.js process, but requires local filesystem setup and control over the input parameter, limiting real-world risk in typical deployments.

Recommendation

Upgrade systeminformation to version 5.33.14 or later and avoid passing untrusted values to the `iface` parameter of `networkStats()`.

Other vulnerabilities in systeminformation

See all
Original NVD description (English source)

systeminformation is a System and OS information library for node.js. Prior to 5.33.14, the Linux networkStats(iface) implementation uses the caller-supplied interface value in an fs.existsSync() check and to build /sys/class/net/<iface> paths, including the operstate path, without verifying that it is a single interface-name segment or that the resolved path remains under /sys/class/net. An attacker who can control iface and create a directory containing symlinked statistics files can use parent-directory components and symlink traversal to make the API return the first line of a file readable by the Node.js process. The package does not expose a network endpoint, and the demonstrated scenario requires local filesystem setup. This issue is fixed in version 5.33.14.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS