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.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required High

Scope Changed

Confidentiality Impact High

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
WSO2 WSO2 API Manager unaffected
Version Status Constraints
0 unknown < 3.2.0
3.2.0 affected < 3.2.0.472
3.2.1 affected < 3.2.1.91
4.1.0 affected < 4.1.0.254
4.2.0 affected < 4.2.0.194
4.3.0 affected < 4.3.0.105
4.4.0 affected < 4.4.0.68
4.5.0 affected < 4.5.0.53
4.6.0 affected < 4.6.0.16
WSO2 WSO2 Universal Gateway unaffected
Version Status Constraints
4.5.0 affected < 4.5.0.53
4.6.0 affected < 4.6.0.16
WSO2 WSO2 Traffic Manager unaffected
Version Status Constraints
4.5.0 affected < 4.5.0.52
4.6.0 affected < 4.6.0.16
WSO2 WSO2 API Control Plane unaffected
Version Status Constraints
4.5.0 affected < 4.5.0.54
4.6.0 affected < 4.6.0.17
WSO2 WSO2 Carbon API Gateway unknown
Version Status Constraints
6.7.206 affected < 6.7.206.594
6.7.210 affected < 6.7.210.95
9.20.74 affected < 9.20.74.398
9.28.116 affected < 9.28.116.412
9.29.120 affected < 9.29.120.228
9.30.67 affected < 9.30.67.158
9.31.86 affected < 9.31.86.147
9.32.147 affected < 9.32.147.38
9.33.61 unaffected ≤ *
WSO2 WSO2 Carbon API Management Implementation unknown
Version Status Constraints
6.7.206 affected < 6.7.206.594
6.7.210 affected < 6.7.210.95
9.20.74 affected < 9.20.74.398
9.28.116 affected < 9.28.116.412
9.29.120 affected < 9.29.120.228
9.30.67 affected < 9.30.67.158
9.31.86 affected < 9.31.86.147
9.32.147 affected < 9.32.147.38
9.33.61 unaffected ≤ *

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Project Subscriptions

Vendors Products
Wso2 Subscribe
Wso2 Api Control Plane Subscribe
Wso2 Api Manager Subscribe
Wso2 Carbon Api Gateway Subscribe
Wso2 Carbon Api Management Implementation Subscribe
Wso2 Traffic Manager Subscribe
Wso2 Universal Gateway Subscribe
Advisories

No advisories yet.

Fixes

Solution

Follow the instructions given on https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2026-5001/#solution

Workaround

No workaround given by the vendor.

References
Link Providers
https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2026-5001/ cve-icon
History

Thu, 06 Aug 2026 22:15:00 +0000

Type Values Removed Values Added
Description 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.
Title XML External Entity (XXE) Injection via Schema Validation in Multiple WSO2 Products Allows File Reading and Denial of Service
First Time appeared Wso2
Wso2 wso2 Api Control Plane
Wso2 wso2 Api Manager
Wso2 wso2 Carbon Api Gateway
Wso2 wso2 Carbon Api Management Implementation
Wso2 wso2 Traffic Manager
Wso2 wso2 Universal Gateway
Weaknesses CWE-776
CPEs cpe:2.3:a:wso2:wso2_api_control_plane:*:*:*:*:*:*:*:*
cpe:2.3:a:wso2:wso2_api_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:wso2:wso2_carbon_api_gateway:*:*:*:*:*:*:*:*
cpe:2.3:a:wso2:wso2_carbon_api_management_implementation:*:*:*:*:*:*:*:*
cpe:2.3:a:wso2:wso2_traffic_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:wso2:wso2_universal_gateway:*:*:*:*:*:*:*:*
Vendors & Products Wso2
Wso2 wso2 Api Control Plane
Wso2 wso2 Api Manager
Wso2 wso2 Carbon Api Gateway
Wso2 wso2 Carbon Api Management Implementation
Wso2 wso2 Traffic Manager
Wso2 wso2 Universal Gateway
References
Metrics cvssV3_1

{'score': 8.7, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:H'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: WSO2

Published:

Updated: 2026-08-06T17:32:10.722Z

Reserved: 2026-03-01T18:48:45.632Z

Link: CVE-2026-3415

cve-icon Vulnrichment

No data.

cve-icon NVD

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cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-07T00:30:06Z

Weaknesses