{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "systeminformation",
          "vendor": "sebhildebrandt",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 5.33.13"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1321",
              "description": "CWE-1321: Improperly Controlled Modification of Object Prototype Attributes (\u0027Prototype Pollution\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-27T16:40:46.246Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/sebhildebrandt/systeminformation/security/advisories/GHSA-7648-jmwf-vw7j",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/sebhildebrandt/systeminformation/security/advisories/GHSA-7648-jmwf-vw7j"
        },
        {
          "name": "https://github.com/sebhildebrandt/systeminformation/commit/6ff25a1ebc0b1fdc7a8aa3507e46f22007da2969",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/sebhildebrandt/systeminformation/commit/6ff25a1ebc0b1fdc7a8aa3507e46f22007da2969"
        },
        {
          "name": "https://github.com/sebhildebrandt/systeminformation/releases/tag/v5.33.13",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/sebhildebrandt/systeminformation/releases/tag/v5.33.13"
        }
      ],
      "source": {
        "advisory": "GHSA-7648-jmwf-vw7j",
        "discovery": "UNKNOWN"
      },
      "title": "systeminformation: Prototype pollution in `networkStats()` via the interface name"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-116674",
    "datePublished": "2026-10-27T16:40:46.246Z",
    "dateReserved": "2026-10-26T20:00:59.829Z",
    "dateUpdated": "2026-10-27T16:40:46.246Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}