CVE-2026-18638

{"id": "CVE-2026-18638", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-18638", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-08-11T17:15:11.914584Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "cve@rapid7.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 2.8}]}, "affected": [{"source": "cve@rapid7.com", "affectedData": [{"repo": "https://github.com/Velocidex/velociraptor/", "vendor": "Rapid7", "product": "Velociraptor", "versions": [{"status": "affected", "version": "0", "lessThan": "0.77.2", "versionType": "semver"}], "defaultStatus": "unaffected"}]}], "published": "2026-08-11T16:17:30.457", "references": [{"url": "http://docs.velociraptor.app/announcements/advisories/cve-2026-18638/", "source": "cve@rapid7.com"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "cve@rapid7.com", "description": [{"lang": "en", "value": "CWE-476"}, {"lang": "en", "value": "CWE-703"}]}], "descriptions": [{"lang": "en", "value": "Any authenticated Velociraptor user \u2014 including one holding only the\u00a0readerrole \u2014 can terminate the entire server process with a single request, by calling\u00a0SetPassword\u00a0with a\u00a0username\u00a0that does not exist."}], "lastModified": "2026-08-28T21:17:10.720", "sourceIdentifier": "cve@rapid7.com"}