{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-18972","assignerOrgId":"9974b330-7714-4307-a722-5648477acda7","state":"PUBLISHED","assignerShortName":"rapid7","dateReserved":"2026-08-05T16:09:39.892Z","datePublished":"2026-08-11T12:30:52.574Z","dateUpdated":"2026-08-11T13:51:00.275Z"},"containers":{"cna":{"providerMetadata":{"orgId":"9974b330-7714-4307-a722-5648477acda7","shortName":"rapid7","dateUpdated":"2026-08-11T12:30:52.574Z"},"title":"Velociraptor authenticated identity-spoofing vulnerability","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-290","description":"CWE-290 Authentication bypass by spoofing","type":"CWE"}]}],"impacts":[{"capecId":"CAPEC-21","descriptions":[{"lang":"en","value":"CAPEC-21 Exploitation of Trusted Identifiers"}]}],"affected":[{"vendor":"Rapid7","product":"Velociraptor","repo":"https://github.com/Velocidex/velociraptor/","versions":[{"status":"affected","version":"0","lessThan":"0.77.2","versionType":"semver"}],"defaultStatus":"unaffected"}],"cpeApplicability":[{"operator":"OR","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:rapid7:velociraptor:*:*:*:*:*:*:*:*","versionStartIncluding":"0","versionEndExcluding":"0.77.2"}]}]}],"descriptions":[{"lang":"en","value":"An authenticated attacker can spoof another GUI user's identity by sending their request with the custom header \\\"Grpc-Metadata-USER\\\". This can lead to an account takeover attack from a user with low privileges to administrator.","supportingMedia":[{"type":"text/html","base64":false,"value":"<pre>An authenticated attacker can spoof another GUI user's identity by sending their request with the custom header \\\"Grpc-Metadata-USER\\\". This can lead to an account takeover attack from a user with low privileges to administrator.</pre>"}]}],"references":[{"url":"http://docs.velociraptor.app/announcements/advisories/cve-2026-18972/"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"NONE","baseSeverity":"CRITICAL","baseScore":9.6,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N"}}],"configurations":[{"lang":"en","value":"The attacker must have access to the Velociraptor GUI with at least the \\\"reader\\\" role.","supportingMedia":[{"type":"text/html","base64":false,"value":"<pre>The attacker must have access to the Velociraptor GUI with at least the \\\"reader\\\" role.</pre>"}]}],"workarounds":[{"lang":"en","value":"If you have a proxy in front of the Velociraptor GUI server, you can block the \\\"Grpc-Metadata-USER\\\" header.","supportingMedia":[{"type":"text/html","base64":false,"value":"<pre>If you have a proxy in front of the Velociraptor GUI server, you can block the \\\"Grpc-Metadata-USER\\\" header.</pre>"}]}],"credits":[{"lang":"en","value":"Yuval Miller","type":"finder"},{"lang":"en","value":"Leon Kayaliev","type":"finder"}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.4"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-11T13:48:57.252540Z","id":"CVE-2026-18972","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-08-11T13:51:00.275Z"}}]}}