CVE-2026-116674
MediumCVSS 6.5Exploitation Probability (EPSS)
Low risk21th percentile - higher than 21% of all known CVEs
Summary
In the systeminformation library, networkStats(ifaces) in lib/network.js on FreeBSD, OpenBSD, and NetBSD stores per-interface data in the _network object indexed by the sanitized caller-controlled interface name. Passing proto causes the inherited Object.prototype value to be used instead of creating an own entry, so calcNetworkSpeed() writes rx_bytes, tx_bytes, rx_sec, tx_sec, ms, last_ms, and operstate onto Object.prototype. The polluted property names are fixed and values come from interface statistics, but name collisions and enumerable keys can corrupt application branching, serialization, configuration merging, validation, or lookup behavior; fixed in version 5.33.13.
Risk Assessment
Prototype pollution can lead to unpredictable application behavior, validation errors, or data leakage. This may weaken the security of applications using this library.
Recommendation
Update the systeminformation library to version 5.33.13 or later. Additionally, consider validating and sanitizing interface names passed to networkStats().
Other vulnerabilities in systeminformation
See all- CVE-2021-21315HighActively exploited
The systeminformation library for Node.js before version 5.3.1 contains a command injection vulnerability. The issue was fixed in version 5.3.1.
- CVE-2026-116673Low
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.
- CVE-2026-116576High
In systeminformation prior to 5.33.16, services() in lib/processes.js inserts a caller-supplied service name into a PowerShell Get-CimInstance filter after sanitizeShellString(). On Windows the sanitizer removes ASCII quotes but permits Unicode quotation marks PowerShell accepts as delimiters, allowing crafted input to terminate the filter and inject a PowerShell expression executed by util.powerShell() with the Node.js process account's permissions.
- CVE-2026-50289High
The systeminformation library for Node.js before version 5.31.7 is vulnerable to OS command injection via the networkInterfaces() function on Linux. The issue stems from improper handling of the source directive in network configuration files, allowing arbitrary command execution.
- CVE-2026-44724High
The systeminformation library for Node.js versions 4.17.0 to 5.31.5 is vulnerable to command injection in the networkInterfaces() function on Linux. This occurs when an active NetworkManager connection profile name contains shell metacharacters that are not properly sanitized before being used in shell commands.
- CVE-2026-26318High
The systeminformation library for Node.js prior to version 5.31.0 is vulnerable to command injection via unsanitized `locate` output in the `versions()` function. An attacker can exploit this flaw to execute arbitrary system commands.
- CVE-2026-26280High
The systeminformation library for Node.js contains a command injection vulnerability in the `wifiNetworks()` function. In the retry code path, the `iface` parameter is not sanitized, allowing an attacker to execute arbitrary OS commands.
Original NVD description (English source)
systeminformation is a System and OS information library for node.js. Prior to 5.33.13, networkStats(ifaces) in lib/network.js on FreeBSD, OpenBSD, and NetBSD stores per-interface data in the plain-object _network cache and indexes it with the sanitized caller-controlled interface name. Passing proto causes the inherited Object.prototype value to be used instead of creating an own cache entry, so calcNetworkSpeed() writes rx_bytes, tx_bytes, rx_sec, tx_sec, ms, last_ms, and operstate onto Object.prototype. The polluted property names are fixed and their values come from interface statistics, but inherited-name collisions and enumerable keys can corrupt application branching, serialization, configuration merging, validation, or lookup behavior. This issue is fixed in version 5.33.13.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS