{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-18638", "assignerOrgId": "9974b330-7714-4307-a722-5648477acda7", "state": "PUBLISHED", "assignerShortName": "rapid7", "dateReserved": "2026-08-03T10:45:04.075Z", "datePublished": "2026-08-11T15:00:53.332Z", "dateUpdated": "2026-08-11T15:00:53.332Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "9974b330-7714-4307-a722-5648477acda7", "shortName": "rapid7", "dateUpdated": "2026-08-11T15:00:53.332Z"}, "title": "Velociraptor server crash via the SetPassword API", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-476", "description": "CWE-476 NULL pointer dereference", "type": "CWE"}]}, {"descriptions": [{"lang": "en", "cweId": "CWE-703", "description": "CWE-703 Improper Check or Handling of Exceptional Conditions", "type": "CWE"}]}], "impacts": [{"capecId": "CAPEC-153", "descriptions": [{"lang": "en", "value": "CAPEC-153 Input Data Manipulation"}]}], "affected": [{"vendor": "Rapid7", "product": "Velociraptor", "repo": "https://github.com/Velocidex/velociraptor/", "versions": [{"status": "affected", "version": "0", "lessThan": "0.77.2", "versionType": "semver"}], "defaultStatus": "unaffected"}], "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.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Any authenticated Velociraptor user \u2014 including one holding only the&nbsp;<code>reader</code>role \u2014 can terminate the entire server process with a single request, by calling&nbsp;<code>SetPassword</code>&nbsp;with a&nbsp;<code>username</code>&nbsp;that does not exist."}]}], "references": [{"url": "http://docs.velociraptor.app/announcements/advisories/cve-2026-18638/"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH", "baseSeverity": "MEDIUM", "baseScore": 6.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}}], "configurations": [{"lang": "en", "value": "The user must have at least reader permissions to the org before they can call the SetPassword API.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "The user must have at least reader permissions to the org before they can call the SetPassword API."}]}], "credits": [{"lang": "en", "value": "Mayank Rajput (https://github.com/hackelite01)", "type": "finder"}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.4"}}}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Velociraptor", "repo": "https://github.com/Velocidex/velociraptor/", "vendor": "Rapid7", "versions": [{"lessThan": "0.77.2", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "cve@rapid7.com"}], "cveTags": [], "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."}], "id": "CVE-2026-18638", "lastModified": "2026-08-11T16:17:30.457", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "cve@rapid7.com", "type": "Secondary"}]}, "published": "2026-08-11T16:17:30.457", "references": [{"source": "cve@rapid7.com", "url": "http://docs.velociraptor.app/announcements/advisories/cve-2026-18638/"}], "sourceIdentifier": "cve@rapid7.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}, {"lang": "en", "value": "CWE-703"}], "source": "cve@rapid7.com", "type": "Secondary"}]}

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