{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-116674", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-10-26T20:00:59.829Z", "datePublished": "2026-10-27T16:40:46.246Z", "dateUpdated": "2026-10-27T16:40:46.246Z"}, "containers": {"cna": {"title": "systeminformation: Prototype pollution in `networkStats()` via the interface name", "problemTypes": [{"descriptions": [{"cweId": "CWE-1321", "lang": "en", "description": "CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')", "type": "CWE"}]}], "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"}}], "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"}], "affected": [{"vendor": "sebhildebrandt", "product": "systeminformation", "versions": [{"version": "< 5.33.13", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-10-27T16:40:46.246Z"}, "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."}], "source": {"advisory": "GHSA-7648-jmwf-vw7j", "discovery": "UNKNOWN"}}}}

{}

{"affected": [{"affectedData": [{"product": "systeminformation", "vendor": "sebhildebrandt", "versions": [{"status": "affected", "version": "< 5.33.13"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "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."}], "id": "CVE-2026-116674", "lastModified": "2026-10-27T17:16:59.583", "metrics": {"cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 2.2, "impactScore": 4.2, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-10-27T17:16:59.453", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/sebhildebrandt/systeminformation/commit/6ff25a1ebc0b1fdc7a8aa3507e46f22007da2969"}, {"source": "security-advisories@github.com", "url": "https://github.com/sebhildebrandt/systeminformation/releases/tag/v5.33.13"}, {"source": "security-advisories@github.com", "url": "https://github.com/sebhildebrandt/systeminformation/security/advisories/GHSA-7648-jmwf-vw7j"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-1321"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,5.33.13)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "systeminformation", "source": "cna", "vendor": "sebhildebrandt"}, "product": "systeminformation", "vendor": "sebhildebrandt"}], "created": "2026-10-27T19:00:08.935915+00:00", "updated": "2026-10-27T19:30:09.082032+00:00", "vendors": ["sebhildebrandt", "sebhildebrandt$PRODUCT$systeminformation"]}