{"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": "2026-08-11T12:30:52.574Z"}, "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"}}}}

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