High 8.7Published Aug 6, 2026

CVE-2026-3415XML External Entity (XXE) Injection via Schema Validation in Multiple WSO2 Products Allows File Reading and Denial of Service

Updated under an hour ago (Oct 26, 2026, 8:10 PM ET)

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It affects WSO2 API Manager and 5 other products. Add what you run to find out whether that includes you.

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Every CVE for WSO2 API Manager

Exploited in the last 30 days

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.

CVSS: 8.7 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:H
Weakness (CWE): CWE-776
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: WSO2
NVD analysis: Deferred
Record last updated: Sep 23, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

WSO2 WSO2 API Manager wso2:api_manager (from the name)	before 3.2.0 status unknown; from 3.2.0 before 3.2.0.472; from 3.2.1 before 3.2.1.91; from 4.1.0 before 4.1.0.254; from 4.2.0 before 4.2.0.194; from 4.3.0 before 4.3.0.105; from 4.4.0 before 4.4.0.68; from 4.5.0 before 4.5.0.53; and 1 more ranges	CNA record
WSO2 WSO2 Universal Gateway wso2:universal_gateway (from the name)	from 4.5.0 before 4.5.0.53; from 4.6.0 before 4.6.0.16	CNA record
WSO2 WSO2 Traffic Manager wso2:traffic_manager (from the name)	from 4.5.0 before 4.5.0.52; from 4.6.0 before 4.6.0.16	CNA record
WSO2 WSO2 API Control Plane wso2:api_control_plane (from the name)	from 4.5.0 before 4.5.0.54; from 4.6.0 before 4.6.0.17	CNA record
WSO2 WSO2 Carbon API Gateway wso2:carbon_api_gateway (from the name)	from 6.7.206 before 6.7.206.594; from 6.7.210 before 6.7.210.95; from 9.20.74 before 9.20.74.398; from 9.28.116 before 9.28.116.412; from 9.29.120 before 9.29.120.228; from 9.30.67 before 9.30.67.158; from 9.31.86 before 9.31.86.147; from 9.32.147 before 9.32.147.38; and 1 more ranges	CNA record
WSO2 WSO2 Carbon API Management Implementation wso2:carbon_api_management_implementation (from the name)	from 6.7.206 before 6.7.206.594; from 6.7.210 before 6.7.210.95; from 9.20.74 before 9.20.74.398; from 9.28.116 before 9.28.116.412; from 9.29.120 before 9.29.120.228; from 9.30.67 before 9.30.67.158; from 9.31.86 before 9.31.86.147; from 9.32.147 before 9.32.147.38; and 1 more ranges	CNA record

References

References

https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2026-5001/	vendor-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.