Is CVE-2026-116674 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-116674 being exploited in the wild.

How severe is CVE-2026-116674?

Medium severity, with a CVSS score of 6.5, published 27 October 2026.

Which products and versions are affected?

systeminformation (npm) < 5.33.13, SEMVER:introduced=0,fixed=5.33.13; Sebhildebrandt Systeminformation before 5.33.13.

Is there a fix for CVE-2026-116674?

Yes. systeminformation (npm): upgrade to 5.33.13 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-116674 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-116674?

Check whether you run systeminformation (npm) or Sebhildebrandt Systeminformation at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-116674: systeminformation prototype pollution in networkStats

Q: Is there a fix for CVE-2026-116674?

Yes. systeminformation (npm): upgrade to 5.33.13 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

Q: How is CVE-2026-116674 attacked?

It is attacked over the network, in a software library.

Q: Am I affected by CVE-2026-116674?

Check whether you run systeminformation (npm) or Sebhildebrandt Systeminformation at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-116674 · Severity: medium · CVSS 6.5 · Published 2026-10-27

systeminformation is a Node.js library that retrieves system and OS information. A prototype pollution vulnerability in its networkStats function allows an attacker to corrupt the Object.prototype by passing specially crafted interface names, potentially affecting application behavior, data serialization, and configuration handling across any code running in the same process.

Technologies: systeminformation (npm). Vendors: npm, Sebhildebrandt.

Quick answers

Is CVE-2026-116674 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-116674 being exploited in the wild.
How severe is CVE-2026-116674?: Medium severity, with a CVSS score of 6.5, published 27 October 2026.
Which products and versions are affected?: systeminformation (npm) < 5.33.13, SEMVER:introduced=0,fixed=5.33.13; Sebhildebrandt Systeminformation before 5.33.13.
Is there a fix for CVE-2026-116674?: Yes. systeminformation (npm): upgrade to 5.33.13 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-116674 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-116674?: Check whether you run systeminformation (npm) or Sebhildebrandt Systeminformation at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

systeminformation (npm): upgrade to 5.33.13 or later
```
npm install systeminformation@5.33.13
```

Technical details

The networkStats(ifaces) function in lib/network.js on FreeBSD, OpenBSD, and NetBSD uses unsanitized caller-controlled interface names as object keys in a plain-object cache, allowing an attacker to index with "__proto__" to pollute Object.prototype. The function then writes interface statistics (rx_bytes, tx_bytes, rx_sec, tx_sec, ms, last_ms, operstate) to this polluted prototype, affecting property enumeration and inheritance across the application.

Affected products

sebhildebrandt systeminformation before 5.33.13

Identifiers

CVE-2026-116674
GHSA-7648-jmwf-vw7j

Timeline

2026-10-27: disclosed
2026-09-20: patched

References

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