CVE-2026-120323
Full vulnerability record from the local CVENow database.
Description
A security flaw has been discovered in samanhappy MCPHub up to 1.0.45/1.1.7. Impacted is an unknown function of the file src/utils/passthroughHeaders.ts. The manipulation of the argument passthroughHeaders results in information disclosure. The attack may be launched remotely. Upgrading to version 1.1.8 is recommended to address this issue. The patch is identified as 040f7b9ae004070bdfe5084cde6bc2c609f78e76. It is advisable to upgrade the affected component.
Severity
MEDIUM
CVSS score
5.3
(v4.0)
Vulnerability status
Deferred
Source identifier
Published
2026-11-02 02:18:47.757000
Last modified
2026-11-02 02:18:47.933000
View original CVE JSON
{
"id": "CVE-2026-120323",
"sourceIdentifier": "[email protected]",
"published": "2026-11-02T02:18:47.757",
"lastModified": "2026-11-02T02:18:47.933",
"vulnStatus": "Deferred",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A security flaw has been discovered in samanhappy MCPHub up to 1.0.45/1.1.7. Impacted is an unknown function of the file src/utils/passthroughHeaders.ts. The manipulation of the argument passthroughHeaders results in information disclosure. The attack may be launched remotely. Upgrading to version 1.1.8 is recommended to address this issue. The patch is identified as 040f7b9ae004070bdfe5084cde6bc2c609f78e76. It is advisable to upgrade the affected component."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "samanhappy",
"product": "MCPHub",
"cpes": [
"cpe:2.3:a:samanhappy:mcphub:*:*:*:*:*:*:*:*"
],
"versions": [
{
"version": "1.0.0",
"status": "affected"
},
{
"version": "1.0.1",
"status": "affected"
},
{
"version": "1.0.2",
"status": "affected"
},
{
"version": "1.0.3",
"status": "affected"
},
{
"version": "1.0.4",
"status": "affected"
},
{
"version": "1.0.5",
"status": "affected"
},
{
"version": "1.0.6",
"status": "affected"
},
{
"version": "1.0.7",
"status": "affected"
},
{
"version": "1.0.8",
"status": "affected"
},
{
"version": "1.0.9",
"status": "affected"
},
{
"version": "1.0.10",
"status": "affected"
},
{
"version": "1.0.11",
"status": "affected"
},
{
"version": "1.0.12",
"status": "affected"
},
{
"version": "1.0.13",
"status": "affected"
},
{
"version": "1.0.14",
"status": "affected"
},
{
"version": "1.0.15",
"status": "affected"
},
{
"version": "1.0.16",
"status": "affected"
},
{
"version": "1.0.17",
"status": "affected"
},
{
"version": "1.0.18",
"status": "affected"
},
{
"version": "1.0.19",
"status": "affected"
},
{
"version": "1.0.20",
"status": "affected"
},
{
"version": "1.0.21",
"status": "affected"
},
{
"version": "1.0.22",
"status": "affected"
},
{
"version": "1.0.23",
"status": "affected"
},
{
"version": "1.0.24",
"status": "affected"
},
{
"version": "1.0.25",
"status": "affected"
},
{
"version": "1.0.26",
"status": "affected"
},
{
"version": "1.0.27",
"status": "affected"
},
{
"version": "1.0.28",
"status": "affected"
},
{
"version": "1.0.29",
"status": "affected"
},
{
"version": "1.0.30",
"status": "affected"
},
{
"version": "1.0.31",
"status": "affected"
},
{
"version": "1.0.32",
"status": "affected"
},
{
"version": "1.0.33",
"status": "affected"
},
{
"version": "1.0.34",
"status": "affected"
},
{
"version": "1.0.35",
"status": "affected"
},
{
"version": "1.0.36",
"status": "affected"
},
{
"version": "1.0.37",
"status": "affected"
},
{
"version": "1.0.38",
"status": "affected"
},
{
"version": "1.0.39",
"status": "affected"
},
{
"version": "1.0.40",
"status": "affected"
},
{
"version": "1.0.41",
"status": "affected"
},
{
"version": "1.0.42",
"status": "affected"
},
{
"version": "1.0.43",
"status": "affected"
},
{
"version": "1.0.44",
"status": "affected"
},
{
"version": "1.0.45",
"status": "affected"
},
{
"version": "1.1.0",
"status": "affected"
},
{
"version": "1.1.1",
"status": "affected"
},
{
"version": "1.1.2",
"status": "affected"
},
{
"version": "1.1.3",
"status": "affected"
},
{
"version": "1.1.4",
"status": "affected"
},
{
"version": "1.1.5",
"status": "affected"
},
{
"version": "1.1.6",
"status": "affected"
},
{
"version": "1.1.7",
"status": "affected"
},
{
"version": "1.1.8",
"status": "unaffected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV40": [
{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
"version": "4.0",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/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": 5.3,
"baseSeverity": "MEDIUM",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"privilegesRequired": "NONE",
"userInteraction": "PASSIVE",
"vulnConfidentialityImpact": "LOW",
"vulnIntegrityImpact": "NONE",
"vulnAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"subAvailabilityImpact": "NONE",
"exploitMaturity": "NOT_DEFINED",
"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": "Primary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N",
"baseScore": 4.3,
"baseSeverity": "MEDIUM",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "NONE",
"userInteraction": "REQUIRED",
"scope": "UNCHANGED",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"availabilityImpact": "NONE"
},
"exploitabilityScore": 2.8,
"impactScore": 1.4
}
],
"cvssMetricV2": [
{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
"version": "2.0",
"vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
"baseScore": 5.0,
"accessVector": "NETWORK",
"accessComplexity": "LOW",
"authentication": "NONE",
"confidentialityImpact": "PARTIAL",
"integrityImpact": "NONE",
"availabilityImpact": "NONE"
},
"baseSeverity": "MEDIUM",
"exploitabilityScore": 10.0,
"impactScore": 2.9,
"acInsufInfo": false,
"obtainAllPrivilege": false,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": false
}
]
},
"weaknesses": [
{
"source": "[email protected]",
"type": "Primary",
"description": [
{
"lang": "en",
"value": "CWE-200"
},
{
"lang": "en",
"value": "CWE-284"
}
]
}
],
"references": [
{
"url": "https://github.com/0xGenesi/CVE/blob/main/MCPHub_OpenAPI_passthroughHeaders_Credential_Exfiltration.md",
"source": "[email protected]"
},
{
"url": "https://github.com/samanhappy/mcphub/",
"source": "[email protected]"
},
{
"url": "https://github.com/samanhappy/mcphub/commit/040f7b9ae004070bdfe5084cde6bc2c609f78e76",
"source": "[email protected]"
},
{
"url": "https://github.com/samanhappy/mcphub/releases/tag/v1.1.8",
"source": "[email protected]"
},
{
"url": "https://vuldb.com/cve/CVE-2026-120323",
"source": "[email protected]"
},
{
"url": "https://vuldb.com/submit/1015029",
"source": "[email protected]"
},
{
"url": "https://vuldb.com/vuln/429655",
"source": "[email protected]"
},
{
"url": "https://vuldb.com/vuln/429655/cti",
"source": "[email protected]"
}
]
}