CVE-2026-17434
Full vulnerability record from the local CVENow database.
Description
A flaw has been found in nanocoai NanoClaw up to 2.0.64. Affected is the function handleAddMcpServer of the file src/modules/self-mod/request.ts of the component add_mcp_server. Executing a manipulation can lead to improper authorization. The attack may be launched remotely. The exploit has been published and may be used. This patch is called e5b928783d5c485637565eb07d2967922dfbf8d8. A patch should be applied to remediate this issue.
Severity
LOW
CVSS score
2.1
(v4.0)
Vulnerability status
Deferred
Source identifier
Published
2026-07-26 04:16:46.573000
Last modified
2026-10-24 13:10:00.147000
View original CVE JSON
{
"id": "CVE-2026-17434",
"sourceIdentifier": "[email protected]",
"published": "2026-07-26T04:16:46.573",
"lastModified": "2026-10-24T13:10:00.147",
"vulnStatus": "Deferred",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A flaw has been found in nanocoai NanoClaw up to 2.0.64. Affected is the function handleAddMcpServer of the file src/modules/self-mod/request.ts of the component add_mcp_server. Executing a manipulation can lead to improper authorization. The attack may be launched remotely. The exploit has been published and may be used. This patch is called e5b928783d5c485637565eb07d2967922dfbf8d8. A patch should be applied to remediate this issue."
},
{
"lang": "es",
"value": "Se ha encontrado una vulnerabilidad en nanocoai NanoClaw hasta la versión 2.0.64. Afecta a la función handleAddMcpServer del archivo src/modules/self-mod/request.ts del componente add_mcp_server. La ejecución de una manipulación puede llevar a una autorización indebida. El ataque puede lanzarse de forma remota. El exploit ha sido publicado y puede ser utilizado. Este parche se llama e5b928783d5c485637565eb07d2967922dfbf8d8. Se debe aplicar un parche para solucionar este problema."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "nanocoai",
"product": "NanoClaw",
"cpes": [
"cpe:2.3:a:nanocoai:nanoclaw:*:*:*:*:*:*:*:*"
],
"modules": [
"add_mcp_server"
],
"versions": [
{
"version": "2.0.0",
"status": "affected"
},
{
"version": "2.0.1",
"status": "affected"
},
{
"version": "2.0.2",
"status": "affected"
},
{
"version": "2.0.3",
"status": "affected"
},
{
"version": "2.0.4",
"status": "affected"
},
{
"version": "2.0.5",
"status": "affected"
},
{
"version": "2.0.6",
"status": "affected"
},
{
"version": "2.0.7",
"status": "affected"
},
{
"version": "2.0.8",
"status": "affected"
},
{
"version": "2.0.9",
"status": "affected"
},
{
"version": "2.0.10",
"status": "affected"
},
{
"version": "2.0.11",
"status": "affected"
},
{
"version": "2.0.12",
"status": "affected"
},
{
"version": "2.0.13",
"status": "affected"
},
{
"version": "2.0.14",
"status": "affected"
},
{
"version": "2.0.15",
"status": "affected"
},
{
"version": "2.0.16",
"status": "affected"
},
{
"version": "2.0.17",
"status": "affected"
},
{
"version": "2.0.18",
"status": "affected"
},
{
"version": "2.0.19",
"status": "affected"
},
{
"version": "2.0.20",
"status": "affected"
},
{
"version": "2.0.21",
"status": "affected"
},
{
"version": "2.0.22",
"status": "affected"
},
{
"version": "2.0.23",
"status": "affected"
},
{
"version": "2.0.24",
"status": "affected"
},
{
"version": "2.0.25",
"status": "affected"
},
{
"version": "2.0.26",
"status": "affected"
},
{
"version": "2.0.27",
"status": "affected"
},
{
"version": "2.0.28",
"status": "affected"
},
{
"version": "2.0.29",
"status": "affected"
},
{
"version": "2.0.30",
"status": "affected"
},
{
"version": "2.0.31",
"status": "affected"
},
{
"version": "2.0.32",
"status": "affected"
},
{
"version": "2.0.33",
"status": "affected"
},
{
"version": "2.0.34",
"status": "affected"
},
{
"version": "2.0.35",
"status": "affected"
},
{
"version": "2.0.36",
"status": "affected"
},
{
"version": "2.0.37",
"status": "affected"
},
{
"version": "2.0.38",
"status": "affected"
},
{
"version": "2.0.39",
"status": "affected"
},
{
"version": "2.0.40",
"status": "affected"
},
{
"version": "2.0.41",
"status": "affected"
},
{
"version": "2.0.42",
"status": "affected"
},
{
"version": "2.0.43",
"status": "affected"
},
{
"version": "2.0.44",
"status": "affected"
},
{
"version": "2.0.45",
"status": "affected"
},
{
"version": "2.0.46",
"status": "affected"
},
{
"version": "2.0.47",
"status": "affected"
},
{
"version": "2.0.48",
"status": "affected"
},
{
"version": "2.0.49",
"status": "affected"
},
{
"version": "2.0.50",
"status": "affected"
},
{
"version": "2.0.51",
"status": "affected"
},
{
"version": "2.0.52",
"status": "affected"
},
{
"version": "2.0.53",
"status": "affected"
},
{
"version": "2.0.54",
"status": "affected"
},
{
"version": "2.0.55",
"status": "affected"
},
{
"version": "2.0.56",
"status": "affected"
},
{
"version": "2.0.57",
"status": "affected"
},
{
"version": "2.0.58",
"status": "affected"
},
{
"version": "2.0.59",
"status": "affected"
},
{
"version": "2.0.60",
"status": "affected"
},
{
"version": "2.0.61",
"status": "affected"
},
{
"version": "2.0.62",
"status": "affected"
},
{
"version": "2.0.63",
"status": "affected"
},
{
"version": "2.0.64",
"status": "affected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV40": [
{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
"version": "4.0",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"baseScore": 2.1,
"baseSeverity": "LOW",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"vulnConfidentialityImpact": "LOW",
"vulnIntegrityImpact": "LOW",
"vulnAvailabilityImpact": "LOW",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"subAvailabilityImpact": "NONE",
"exploitMaturity": "PROOF_OF_CONCEPT",
"confidentialityRequirement": "NOT_DEFINED",
"integrityRequirement": "NOT_DEFINED",
"availabilityRequirement": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"valueDensity": "NOT_DEFINED",
"vulnerabilityResponseEffort": "NOT_DEFINED",
"providerUrgency": "NOT_DEFINED"
}
}
],
"cvssMetricV31": [
{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
"baseScore": 6.3,
"baseSeverity": "MEDIUM",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"availabilityImpact": "LOW"
},
"exploitabilityScore": 2.8,
"impactScore": 3.4
}
],
"cvssMetricV2": [
{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
"version": "2.0",
"vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P",
"baseScore": 6.5,
"accessVector": "NETWORK",
"accessComplexity": "LOW",
"authentication": "SINGLE",
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"availabilityImpact": "PARTIAL"
},
"baseSeverity": "MEDIUM",
"exploitabilityScore": 8.0,
"impactScore": 6.4,
"acInsufInfo": false,
"obtainAllPrivilege": false,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": false
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-07-27T14:37:14.393084Z",
"id": "CVE-2026-17434",
"options": [
{
"exploitation": "poc"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "[email protected]",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-266"
},
{
"lang": "en",
"value": "CWE-285"
}
]
}
],
"references": [
{
"url": "https://github.com/nanocoai/nanoclaw/",
"source": "[email protected]"
},
{
"url": "https://github.com/nanocoai/nanoclaw/commit/e5b928783d5c485637565eb07d2967922dfbf8d8",
"source": "[email protected]"
},
{
"url": "https://github.com/nanocoai/nanoclaw/issues/2762",
"source": "[email protected]"
},
{
"url": "https://github.com/nanocoai/nanoclaw/pull/2998",
"source": "[email protected]"
},
{
"url": "https://vuldb.com/cve/CVE-2026-17434",
"source": "[email protected]"
},
{
"url": "https://vuldb.com/submit/862451",
"source": "[email protected]"
},
{
"url": "https://vuldb.com/vuln/383075",
"source": "[email protected]"
},
{
"url": "https://vuldb.com/vuln/383075/cti",
"source": "[email protected]"
}
]
}