CVE-2026-3415
Estado: AplazadaAlta (8.7)—
The XML and schema validation functionalities within the SchemaValidator Mediator process XML input as part of validation flows. Under certain conditions, the XML parser allows the resolution of external entities when handling user-supplied XML content during validation operations. This behavior can occur when an attacker supplies crafted XML payloads to the relevant mediator flows with sufficient privileges.
Successful exploitation may allow a highly privileged actor to read files accessible within the server hosting the affected product.
Leer descripción completaMostrar menos
Additionally, it may be possible to trigger outbound requests to unintended internal or external locations, depending on the server environment and network configuration. Specially crafted XML payloads can also lead to excessive resource consumption during parsing, impacting the availability of the product.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:H
- Puntuación base: 8.7
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.49%
- Percentil entre todas las CVEs puntuadas: 40
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
🎯 Técnicas ATT&CK
Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.
- Explotación
T1210Exploitation of Remote Serviceslateral movement85 % - Impacto principal
T1005Data from Local Systemcollection80 % - Impacto secundario
T1090.001Internal Proxycommand and control70 % - Impacto secundario
T1499.004Application or System Exploitationimpact75 %
Acceso de red con privilegios altos (PR:H) en servicio remoto; XXE permite leer archivos (T1005), DoS (T1499.004 por consumo de recursos) y SSRF (T1090.001) según vector CVSS y descripción explícita.
Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.
🛡️ Mitigaciones ATT&CK que cubren estas técnicas
Tecnologías afectadas (1)
⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.
CWE
- CWE-776
Referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2026-3415",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-3415",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2026-08-07T17:47:29.495909Z"
}
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "ed10eef1-636d-4fbe-9993-6890dfa878f8",
"cvssData": {
"scope": "CHANGED",
"version": "3.1",
"baseScore": 8.7,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "HIGH",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.8,
"exploitabilityScore": 2.3
}
]
},
"affected": [
{
"source": "ed10eef1-636d-4fbe-9993-6890dfa878f8",
"affectedData": [
{
"vendor": "WSO2",
"product": "WSO2 API Manager",
"versions": [
{
"status": "unknown",
"version": "0",
"lessThan": "3.2.0",
"versionType": "custom"
},
{
"status": "affected",
"version": "3.2.0",
"lessThan": "3.2.0.472",
"versionType": "custom"
},
{
"status": "affected",
"version": "3.2.1",
"lessThan": "3.2.1.91",
"versionType": "custom"
},
{
"status": "affected",
"version": "4.1.0",
"lessThan": "4.1.0.254",
"versionType": "custom"
},
{
"status": "affected",
"version": "4.2.0",
"lessThan": "4.2.0.194",
"versionType": "custom"
},
{
"status": "affected",
"version": "4.3.0",
"lessThan": "4.3.0.105",
"versionType": "custom"
},
{
"status": "affected",
"version": "4.4.0",
"lessThan": "4.4.0.68",
"versionType": "custom"
},
{
"status": "affected",
"version": "4.5.0",
"lessThan": "4.5.0.53",
"versionType": "custom"
},
{
"status": "affected",
"version": "4.6.0",
"lessThan": "4.6.0.16",
"versionType": "custom"
}
],
"defaultStatus": "unaffected"
},
{
"vendor": "WSO2",
"product": "WSO2 Universal Gateway",
"versions": [
{
"status": "affected",
"version": "4.5.0",
"lessThan": "4.5.0.53",
"versionType": "custom"
},
{
"status": "affected",
"version": "4.6.0",
"lessThan": "4.6.0.16",
"versionType": "custom"
}
],
"defaultStatus": "unaffected"
},
{
"vendor": "WSO2",
"product": "WSO2 Traffic Manager",
"versions": [
{
"status": "affected",
"version": "4.5.0",
"lessThan": "4.5.0.52",
"versionType": "custom"
},
{
"status": "affected",
"version": "4.6.0",
"lessThan": "4.6.0.16",
"versionType": "custom"
}
],
"defaultStatus": "unaffected"
},
{
"vendor": "WSO2",
"product": "WSO2 API Control Plane",
"versions": [
{
"status": "affected",
"version": "4.5.0",
"lessThan": "4.5.0.54",
"versionType": "custom"
},
{
"status": "affected",
"version": "4.6.0",
"lessThan": "4.6.0.17",
"versionType": "custom"
}
],
"defaultStatus": "unaffected"
},
{
"vendor": "WSO2",
"product": "WSO2 Carbon API Gateway",
"versions": [
{
"status": "affected",
"version": "6.7.206",
"lessThan": "6.7.206.594",
"versionType": "custom"
},
{
"status": "affected",
"version": "6.7.210",
"lessThan": "6.7.210.95",
"versionType": "custom"
},
{
"status": "affected",
"version": "9.20.74",
"lessThan": "9.20.74.398",
"versionType": "custom"
},
{
"status": "affected",
"version": "9.28.116",
"lessThan": "9.28.116.412",
"versionType": "custom"
},
{
"status": "affected",
"version": "9.29.120",
"lessThan": "9.29.120.228",
"versionType": "custom"
},
{
"status": "affected",
"version": "9.30.67",
"lessThan": "9.30.67.158",
"versionType": "custom"
},
{
"status": "affected",
"version": "9.31.86",
"lessThan": "9.31.86.147",
"versionType": "custom"
},
{
"status": "affected",
"version": "9.32.147",
"lessThan": "9.32.147.38",
"versionType": "custom"
},
{
"status": "unaffected",
"version": "9.33.61",
"versionType": "custom",
"lessThanOrEqual": "*"
}
],
"packageName": "org.wso2.carbon.apimgt:org.wso2.carbon.apimgt.gateway",
"defaultStatus": "unknown"
},
{
"vendor": "WSO2",
"product": "WSO2 Carbon API Management Implementation",
"versions": [
{
"status": "affected",
"version": "6.7.206",
"lessThan": "6.7.206.594",
"versionType": "custom"
},
{
"status": "affected",
"version": "6.7.210",
"lessThan": "6.7.210.95",
"versionType": "custom"
},
{
"status": "affected",
"version": "9.20.74",
"lessThan": "9.20.74.398",
"versionType": "custom"
},
{
"status": "affected",
"version": "9.28.116",
"lessThan": "9.28.116.412",
"versionType": "custom"
},
{
"status": "affected",
"version": "9.29.120",
"lessThan": "9.29.120.228",
"versionType": "custom"
},
{
"status": "affected",
"version": "9.30.67",
"lessThan": "9.30.67.158",
"versionType": "custom"
},
{
"status": "affected",
"version": "9.31.86",
"lessThan": "9.31.86.147",
"versionType": "custom"
},
{
"status": "affected",
"version": "9.32.147",
"lessThan": "9.32.147.38",
"versionType": "custom"
},
{
"status": "unaffected",
"version": "9.33.61",
"versionType": "custom",
"lessThanOrEqual": "*"
}
],
"packageName": "org.wso2.carbon.apimgt:org.wso2.carbon.apimgt.impl",
"defaultStatus": "unknown"
}
]
}
],
"published": "2026-08-06T22:17:03.770",
"references": [
{
"url": "https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2026-5001/",
"source": "ed10eef1-636d-4fbe-9993-6890dfa878f8"
}
],
"vulnStatus": "Deferred",
"weaknesses": [
{
"type": "Secondary",
"source": "ed10eef1-636d-4fbe-9993-6890dfa878f8",
"description": [
{
"lang": "en",
"value": "CWE-776"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "The XML and schema validation functionalities within the SchemaValidator Mediator process XML input as part of validation flows. Under certain conditions, the XML parser allows the resolution of external entities when handling user-supplied XML content during validation operations. This behavior can occur when an attacker supplies crafted XML payloads to the relevant mediator flows with sufficient privileges.\n\nSuccessful exploitation may allow a highly privileged actor to read files accessible within the server hosting the affected product. Additionally, it may be possible to trigger outbound requests to unintended internal or external locations, depending on the server environment and network configuration. Specially crafted XML payloads can also lead to excessive resource consumption during parsing, impacting the availability of the product."
}
],
"lastModified": "2026-08-31T20:14:36.250",
"sourceIdentifier": "ed10eef1-636d-4fbe-9993-6890dfa878f8"
}