CVE-2026-116673: systeminformation has path traversal in Linux networkStats() that allows symlink-based file disclosure outside /sys/class/net
On Linux, systeminformation@5.33.13 builds /sys/class/net/<iface> paths from the caller-supplied networkStats(iface) value without checking that the resolved path stays inside /sys/class/net. A caller who can create a symlink fixture and control the value passed to this API can make the function return the first line of a file readable by the Node process.
References
- github.com/advisories/GHSA-4vjg-vx72-qq4g
- github.com/sebhildebrandt/systeminformation/commit/8d294b3139fec654a912969ac898037578a218cd
- github.com/sebhildebrandt/systeminformation/releases/tag/v5.33.14
- github.com/sebhildebrandt/systeminformation/security/advisories/GHSA-4vjg-vx72-qq4g
- nvd.nist.gov/vuln/detail/CVE-2026-116673
Code Behaviors & Features
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