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Vulnerabilities

Vulnerability · CVE-2026-116673

systeminformation has path traversal in Linux networkStats() that allows symlink-based file disclosure outside /sys/class/net

Published Oct 28, 2026 · catalog updated Oct 28, 2026 · systeminformation has path traversal

Last checked Nov 4, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-116673. EPSS is 0.13%. Act only if a listed version of systeminformation has path traversal is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (systeminformation has path traversal).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Low3.3
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.13%
Remediation
Version ranges on file
Affected products
npm systeminformation

### Summary On Linux, builds paths from the caller-supplied value without checking that the resolved path stays inside . 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. ### Details The strict string sanitizer removes shell metacharacters but retains and . The Linux implementation uses this value in an check and then in seven paths for interface statistics. Both operations follow path components and symlinks. The code does not validate the value as an interface name or enforce resolved-path containment. The proof of concept below creates the expected statistics files in a directory writable by the unprivileged user. Its symlink points to a synthetic mode-0600 file under . The package call runs as root and returns the marker even though cannot read that file. ### PoC Use a disposable Ubuntu Linux VM with Node.js, npm, and installed. These steps create and remove only a synthetic marker and a temporary fixture. Install the affected version: Save the following as in that directory, then run : Expected result: ### Impact The demonstrated impact is disclosure to the API caller of the first line of a file readable by the Node process. The package is a library and does not expose a network endpoint. A consuming application route that forwards remote attacker input to this API and returns its result was not established, so remote exploitability is not demonstrated.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • npm systeminformation< 5.33.14

How to fix CVE-2026-116673

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-116673. EPSS is 0.13%. Act only if a listed version of systeminformation has path traversal is installed.

Which versions are affected?

Compare what you have installed with < 5.33.14. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-22: Path Traversal; CWE-59: Link Following. EPSS 0.13%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 28, 2026 · GitHub Advisory Database

    Detected

    ### Summary On Linux, builds paths from the caller-supplied value without checking that the resolved path stays inside . 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. ### Details The strict string sanitizer removes shell metacharacters but retains and . The Linux implementation

  2. Oct 28, 2026 · GitHub Advisory Database

    Updated

    ### Summary On Linux, builds paths from the caller-supplied value without checking that the resolved path stays inside . 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. ### Details The strict string sanitizer removes shell metacharacters but retains and . The Linux implementation

Sources

  • CVE.orgVulnerability recordCVE-2026-116673

    Official CVE identifier

    cve.org
  • GitHub Advisory DatabasePackage advisoryGHSA-4vjg-vx72-qq4g

    systeminformation has path traversal in Linux networkStats() that allows symlink-based file disclosure outside /sys/class/net

    github.com
  • GitLab Advisory DatabasePackage advisoryCVE-2026-116673

    On Linux, systeminformation@5.33.13 builds /sys/class/net/ 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.

    advisories.gitlab.com

References

Freshness

Last verified in this catalog Nov 4, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • CVE.orgOct 29, 2026
  • GitLab Advisory DatabaseOct 29, 2026
  • GitHub Advisory DatabaseOct 29, 2026