{ "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": "
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." } ] } ], "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": "
The attacker must have access to the Velociraptor GUI with at least the \\\"reader\\\" role." } ] } ], "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": "
If you have a proxy in front of the Velociraptor GUI server, you can block the \\\"Grpc-Metadata-USER\\\" header." } ] } ], "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" } } ] } }