CVE-2026-3415
XML External Entity (XXE) Injection via Schema Validation in Multiple WSO2 Products Allows File Reading and Denial of Service
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.
INFO
Published Date :
Aug. 6, 2026, 10:17 p.m.
Last Modified :
Aug. 6, 2026, 10:17 p.m.
Remotely Exploit :
Yes !
Source :
ed10eef1-636d-4fbe-9993-6890dfa878f8
Affected Products
The following products are affected by CVE-2026-3415
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | ed10eef1-636d-4fbe-9993-6890dfa878f8 |
Solution
- Configure XML parsers to disallow external entity resolution.
- Validate all XML inputs rigorously.
- Update to the latest secure product version.
- Restrict network access for XML processing.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-3415.
| URL | Resource |
|---|---|
| https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2026-5001/ |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-3415 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-3415
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-3415 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-3415 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by ed10eef1-636d-4fbe-9993-6890dfa878f8
Aug. 06, 2026
Action Type Old Value New Value Added Affected [{'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'}] 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. Added CVSS V3.1 AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:H Added CWE CWE-776 Added Reference https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2026-5001/