CVE-2026-13489
Full vulnerability record from the local CVENow database.
Description
A weakness has been identified in 78 xiaozhi-esp32 up to 2.2.6. Affected by this issue is the function ParseMessage of the file main/mcp_server.cc of the component MCP Response Handler. This manipulation causes improper synchronization. Remote exploitation of the attack is possible. The attack's complexity is rated as high. The exploitation is known to be difficult. The exploit has been made available to the public and could be used for attacks. The pull request to fix this issue awaits acceptance.
Severity
LOW
CVSS score
1.3
(v4.0)
Vulnerability status
Deferred
Source identifier
Published
2026-06-28 12:17:03.170000
Last modified
2026-10-25 17:10:00.197000
View original CVE JSON
{
"id": "CVE-2026-13489",
"sourceIdentifier": "[email protected]",
"published": "2026-06-28T12:17:03.170",
"lastModified": "2026-10-25T17:10:00.197",
"vulnStatus": "Deferred",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A weakness has been identified in 78 xiaozhi-esp32 up to 2.2.6. Affected by this issue is the function ParseMessage of the file main/mcp_server.cc of the component MCP Response Handler. This manipulation causes improper synchronization. Remote exploitation of the attack is possible. The attack's complexity is rated as high. The exploitation is known to be difficult. The exploit has been made available to the public and could be used for attacks. The pull request to fix this issue awaits acceptance."
},
{
"lang": "es",
"value": "Se ha identificado una debilidad en 78 xiaozhi-esp32 hasta la versión 2.2.6. Afectada por este problema es la función ParseMessage del archivo main/mcp_server.cc del componente Gestor de Respuesta MCP. Esta manipulación causa una sincronización incorrecta. La explotación remota del ataque es posible. La complejidad del ataque se califica como alta. Se sabe que la explotación es difícil. El exploit se ha puesto a disposición del público y podría usarse para ataques. La solicitud de extracción para solucionar este problema espera ser aceptada."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "78",
"product": "xiaozhi-esp32",
"cpes": [
"cpe:2.3:a:78:xiaozhi-esp32:*:*:*:*:*:*:*:*"
],
"modules": [
"MCP Response Handler"
],
"versions": [
{
"version": "2.2.0",
"status": "affected"
},
{
"version": "2.2.1",
"status": "affected"
},
{
"version": "2.2.2",
"status": "affected"
},
{
"version": "2.2.3",
"status": "affected"
},
{
"version": "2.2.4",
"status": "affected"
},
{
"version": "2.2.5",
"status": "affected"
},
{
"version": "2.2.6",
"status": "affected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV40": [
{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
"version": "4.0",
"vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/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": 1.3,
"baseSeverity": "LOW",
"attackVector": "NETWORK",
"attackComplexity": "HIGH",
"attackRequirements": "NONE",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "LOW",
"vulnAvailabilityImpact": "NONE",
"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:H/PR:L/UI:N/S:U/C:N/I:L/A:N",
"baseScore": 3.1,
"baseSeverity": "LOW",
"attackVector": "NETWORK",
"attackComplexity": "HIGH",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"availabilityImpact": "NONE"
},
"exploitabilityScore": 1.6,
"impactScore": 1.4
}
],
"cvssMetricV2": [
{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
"version": "2.0",
"vectorString": "AV:N/AC:H/Au:S/C:N/I:P/A:N",
"baseScore": 2.1,
"accessVector": "NETWORK",
"accessComplexity": "HIGH",
"authentication": "SINGLE",
"confidentialityImpact": "NONE",
"integrityImpact": "PARTIAL",
"availabilityImpact": "NONE"
},
"baseSeverity": "LOW",
"exploitabilityScore": 3.9,
"impactScore": 2.9,
"acInsufInfo": false,
"obtainAllPrivilege": false,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": false
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-06-29T13:00:53.902441Z",
"id": "CVE-2026-13489",
"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-662"
}
]
}
],
"references": [
{
"url": "https://github.com/78/xiaozhi-esp32/",
"source": "[email protected]"
},
{
"url": "https://github.com/78/xiaozhi-esp32/issues/2020",
"source": "[email protected]"
},
{
"url": "https://github.com/78/xiaozhi-esp32/pull/2021",
"source": "[email protected]"
},
{
"url": "https://vuldb.com/cve/CVE-2026-13489",
"source": "[email protected]"
},
{
"url": "https://vuldb.com/submit/838198",
"source": "[email protected]"
},
{
"url": "https://vuldb.com/vuln/374486",
"source": "[email protected]"
},
{
"url": "https://vuldb.com/vuln/374486/cti",
"source": "[email protected]"
}
]
}