FKIE_CVE-2026-3415
Vulnerability from fkie_nvd - Published: 2026-08-06 22:17 - Updated: 2026-08-07 18:17
Severity
Summary
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. 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.
References
Impacted products
| Vendor | Product | Version |
|---|
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "WSO2 API Manager",
"vendor": "WSO2",
"versions": [
{
"lessThan": "3.2.0",
"status": "unknown",
"version": "0",
"versionType": "custom"
},
{
"lessThan": "3.2.0.472",
"status": "affected",
"version": "3.2.0",
"versionType": "custom"
},
{
"lessThan": "3.2.1.91",
"status": "affected",
"version": "3.2.1",
"versionType": "custom"
},
{
"lessThan": "4.1.0.254",
"status": "affected",
"version": "4.1.0",
"versionType": "custom"
},
{
"lessThan": "4.2.0.194",
"status": "affected",
"version": "4.2.0",
"versionType": "custom"
},
{
"lessThan": "4.3.0.105",
"status": "affected",
"version": "4.3.0",
"versionType": "custom"
},
{
"lessThan": "4.4.0.68",
"status": "affected",
"version": "4.4.0",
"versionType": "custom"
},
{
"lessThan": "4.5.0.53",
"status": "affected",
"version": "4.5.0",
"versionType": "custom"
},
{
"lessThan": "4.6.0.16",
"status": "affected",
"version": "4.6.0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"product": "WSO2 Universal Gateway",
"vendor": "WSO2",
"versions": [
{
"lessThan": "4.5.0.53",
"status": "affected",
"version": "4.5.0",
"versionType": "custom"
},
{
"lessThan": "4.6.0.16",
"status": "affected",
"version": "4.6.0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"product": "WSO2 Traffic Manager",
"vendor": "WSO2",
"versions": [
{
"lessThan": "4.5.0.52",
"status": "affected",
"version": "4.5.0",
"versionType": "custom"
},
{
"lessThan": "4.6.0.16",
"status": "affected",
"version": "4.6.0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"product": "WSO2 API Control Plane",
"vendor": "WSO2",
"versions": [
{
"lessThan": "4.5.0.54",
"status": "affected",
"version": "4.5.0",
"versionType": "custom"
},
{
"lessThan": "4.6.0.17",
"status": "affected",
"version": "4.6.0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"packageName": "org.wso2.carbon.apimgt:org.wso2.carbon.apimgt.gateway",
"product": "WSO2 Carbon API Gateway",
"vendor": "WSO2",
"versions": [
{
"lessThan": "6.7.206.594",
"status": "affected",
"version": "6.7.206",
"versionType": "custom"
},
{
"lessThan": "6.7.210.95",
"status": "affected",
"version": "6.7.210",
"versionType": "custom"
},
{
"lessThan": "9.20.74.398",
"status": "affected",
"version": "9.20.74",
"versionType": "custom"
},
{
"lessThan": "9.28.116.412",
"status": "affected",
"version": "9.28.116",
"versionType": "custom"
},
{
"lessThan": "9.29.120.228",
"status": "affected",
"version": "9.29.120",
"versionType": "custom"
},
{
"lessThan": "9.30.67.158",
"status": "affected",
"version": "9.30.67",
"versionType": "custom"
},
{
"lessThan": "9.31.86.147",
"status": "affected",
"version": "9.31.86",
"versionType": "custom"
},
{
"lessThan": "9.32.147.38",
"status": "affected",
"version": "9.32.147",
"versionType": "custom"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "9.33.61",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"packageName": "org.wso2.carbon.apimgt:org.wso2.carbon.apimgt.impl",
"product": "WSO2 Carbon API Management Implementation",
"vendor": "WSO2",
"versions": [
{
"lessThan": "6.7.206.594",
"status": "affected",
"version": "6.7.206",
"versionType": "custom"
},
{
"lessThan": "6.7.210.95",
"status": "affected",
"version": "6.7.210",
"versionType": "custom"
},
{
"lessThan": "9.20.74.398",
"status": "affected",
"version": "9.20.74",
"versionType": "custom"
},
{
"lessThan": "9.28.116.412",
"status": "affected",
"version": "9.28.116",
"versionType": "custom"
},
{
"lessThan": "9.29.120.228",
"status": "affected",
"version": "9.29.120",
"versionType": "custom"
},
{
"lessThan": "9.30.67.158",
"status": "affected",
"version": "9.30.67",
"versionType": "custom"
},
{
"lessThan": "9.31.86.147",
"status": "affected",
"version": "9.31.86",
"versionType": "custom"
},
{
"lessThan": "9.32.147.38",
"status": "affected",
"version": "9.32.147",
"versionType": "custom"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "9.33.61",
"versionType": "custom"
}
]
}
],
"source": "ed10eef1-636d-4fbe-9993-6890dfa878f8"
}
],
"cveTags": [],
"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."
}
],
"id": "CVE-2026-3415",
"lastModified": "2026-08-07T18:17:14.043",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.7,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "HIGH",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 2.3,
"impactScore": 5.8,
"source": "ed10eef1-636d-4fbe-9993-6890dfa878f8",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-3415",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-07T17:47:29.495909Z",
"version": "2.0.3"
}
}
]
},
"published": "2026-08-06T22:17:03.770",
"references": [
{
"source": "ed10eef1-636d-4fbe-9993-6890dfa878f8",
"url": "https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2026-5001/"
}
],
"sourceIdentifier": "ed10eef1-636d-4fbe-9993-6890dfa878f8",
"vulnStatus": "Received",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-776"
}
],
"source": "ed10eef1-636d-4fbe-9993-6890dfa878f8",
"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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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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