Symlink Attack Affecting systeminformation package, versions <5.33.14
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JS-SYSTEMINFORMATION-21816466
- published29 Oct 2026
- disclosed28 Oct 2026
- credititsFM-Codes
Introduced: 28 Oct 2026
NewCVE-2026-116673 (opens in a new tab)How to fix?
Upgrade systeminformation to version 5.33.14 or higher.
Overview
systeminformation is a simple system and OS information library.
Affected versions of this package are vulnerable to Symlink Attack via the networkStatsSingle function in lib/network.js when a network interface name containing path traversal sequences (e.g. ../) is passed to networkStats() on Linux. The function constructs a filesystem path by concatenating the unsanitized interface name directly onto /sys/class/net/, allowing an attacker who controls the interface name argument to read arbitrary files accessible to the process by escaping the intended directory.