FKIE_CVE-2026-17434
Vulnerability from fkie_nvd - Published: 2026-07-26 04:16 - Updated: 2026-07-27 20:25
Severity
Summary
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.
References
Impacted products
| Vendor | Product | Version |
|---|
{
"affected": [
{
"affectedData": [
{
"cpes": [
"cpe:2.3:a:nanocoai:nanoclaw:*:*:*:*:*:*:*:*"
],
"modules": [
"add_mcp_server"
],
"product": "NanoClaw",
"vendor": "nanocoai",
"versions": [
{
"status": "affected",
"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"
}
]
}
],
"source": "cna@vuldb.com"
}
],
"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."
}
],
"id": "CVE-2026-17434",
"lastModified": "2026-07-27T20:25:13.817",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "SINGLE",
"availabilityImpact": "PARTIAL",
"baseScore": 6.5,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P",
"version": "2.0"
},
"exploitabilityScore": 8.0,
"impactScore": 6.4,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "cna@vuldb.com",
"type": "Secondary",
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 6.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 3.4,
"source": "cna@vuldb.com",
"type": "Secondary"
}
],
"cvssMetricV40": [
{
"cvssData": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"availabilityRequirement": "NOT_DEFINED",
"baseScore": 2.1,
"baseSeverity": "LOW",
"confidentialityRequirement": "NOT_DEFINED",
"exploitMaturity": "PROOF_OF_CONCEPT",
"integrityRequirement": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"privilegesRequired": "LOW",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"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",
"version": "4.0",
"vulnAvailabilityImpact": "LOW",
"vulnConfidentialityImpact": "LOW",
"vulnIntegrityImpact": "LOW",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"source": "cna@vuldb.com",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-17434",
"options": [
{
"exploitation": "poc"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-07-27T14:37:14.393084Z",
"version": "2.0.3"
}
}
]
},
"published": "2026-07-26T04:16:46.573",
"references": [
{
"source": "cna@vuldb.com",
"url": "https://github.com/nanocoai/nanoclaw/"
},
{
"source": "cna@vuldb.com",
"url": "https://github.com/nanocoai/nanoclaw/commit/e5b928783d5c485637565eb07d2967922dfbf8d8"
},
{
"source": "cna@vuldb.com",
"url": "https://github.com/nanocoai/nanoclaw/issues/2762"
},
{
"source": "cna@vuldb.com",
"url": "https://github.com/nanocoai/nanoclaw/pull/2998"
},
{
"source": "cna@vuldb.com",
"url": "https://vuldb.com/cve/CVE-2026-17434"
},
{
"source": "cna@vuldb.com",
"url": "https://vuldb.com/submit/862451"
},
{
"source": "cna@vuldb.com",
"url": "https://vuldb.com/vuln/383075"
},
{
"source": "cna@vuldb.com",
"url": "https://vuldb.com/vuln/383075/cti"
}
],
"sourceIdentifier": "cna@vuldb.com",
"vulnStatus": "Deferred",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-266"
},
{
"lang": "en",
"value": "CWE-285"
}
],
"source": "cna@vuldb.com",
"type": "Secondary"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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