{"id":"CVE-2026-18638","state":"PUBLISHED","title":"Velociraptor server crash via the SetPassword API","description":"Any authenticated Velociraptor user — including one holding only the readerrole — can terminate the entire server process with a single request, by calling SetPassword with a username that does not exist.","publishedAt":"2026-08-11T15:00:53.332Z","updatedAt":"2026-08-11T17:22:44.142Z","severity":{"score":6.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","source":"rapid7"},"assigner":"rapid7","products":["Rapid7 Velociraptor"],"affected":[{"vendor":"Rapid7","product":"Velociraptor","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"0.77.2","versionType":"semver"}],"repo":"https://github.com/Velocidex/velociraptor/"}],"references":["http://docs.velociraptor.app/announcements/advisories/cve-2026-18638/"],"weaknesses":["CWE-476","CWE-703"],"ingestedAt":"2026-10-29T20:11:10.572Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/18xxx/CVE-2026-18638.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-18638","state":"PUBLISHED","datePublished":"2026-08-11T15:00:53.332Z","dateUpdated":"2026-08-11T17:22:44.142Z","assignerShortName":"rapid7","assignerOrgId":"9974b330-7714-4307-a722-5648477acda7","dateReserved":"2026-08-03T10:45:04.075Z"},"containers":{"cna":{"title":"Velociraptor server crash via the SetPassword API","descriptions":[{"lang":"en","value":"Any authenticated Velociraptor user — including one holding only the readerrole — can terminate the entire server process with a single request, by calling SetPassword with a username that does not exist."}],"affected":[{"vendor":"Rapid7","product":"Velociraptor","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"0.77.2","versionType":"semver"}],"repo":"https://github.com/Velocidex/velociraptor/"}],"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"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-476","lang":"en","description":"CWE-476 NULL pointer dereference","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-703","lang":"en","description":"CWE-703 Improper Check or Handling of Exceptional Conditions","type":"CWE"}]}],"providerMetadata":{"shortName":"rapid7","orgId":"9974b330-7714-4307-a722-5648477acda7","dateUpdated":"2026-08-11T15:00:53.332Z"},"impacts":[{"capecId":"CAPEC-153","descriptions":[{"lang":"en","value":"CAPEC-153 Input Data Manipulation"}]}],"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"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-11T17:15:11.914584Z","id":"CVE-2026-18638","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-11T17:22:44.142Z"}}]}}}