Vulnerability · Published Nov 2, 2026 · Assigned by WSO2
CVE-2026-18800Information Disclosure via Event Publisher Logging in Multiple WSO2 Products Allows Retrieval of Sensitive Data
Medium 4.4
In plain English
A medium-severity sensitive data in logs in WSO2 API Control Plane from WSO2. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 5% of all known vulnerabilities).
Official description
When an Event Publisher output adapter is configured with properties that are irrelevant to its function, the affected products log these irrelevant properties. This can inadvertently include sensitive user credentials or other confidential information depending on the nature of the misconfigured property. A malicious actor with access to the 'wso2carbon' log files could retrieve sensitive information logged by the system. This may potentially lead to unauthorized access if the logged data contains credentials or other critical secrets.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| WSO2 | WSO2 API Manager | 3.1.0 – before 3.1.0.3573.2.0 – before 3.2.0.4653.2.1 – before 3.2.1.844.1.0 – before 4.1.0.2494.2.0 – before 4.2.0.1894.3.0 – before 4.3.0.1004.4.0 – before 4.4.0.64 |
| WSO2 | WSO2 Traffic Manager | 4.5.0 – before 4.5.0.484.6.0 – before 4.6.0.13 |
| WSO2 | WSO2 API Control Plane | 4.5.0 – before 4.5.0.504.6.0 – before 4.6.0.14 |
| WSO2 | WSO2 Universal Gateway | 4.5.0 – before 4.5.0.494.6.0 – before 4.6.0.13 |
| WSO2 | WSO2 Identity Server | 5.10.0 – before 5.10.0.3865.11.0 – before 5.11.0.4336.0.0 – before 6.0.0.2606.1.0 – before 6.1.0.2617.0.0 – before 7.0.0.1397.1.0 – before 7.1.0.477.2.0 – before 7.2.0.8 |
| WSO2 | WSO2 Identity Server as Key Manager | 5.10.0 – before 5.10.0.377 |
| WSO2 | WSO2 Open Banking IAM | 2.0.0 – before 2.0.0.426 |
| WSO2 | WSO2 Open Banking AM | 2.0.0 – before 2.0.0.406 |
| WSO2 | WSO2 Carbon Event Publisher Core | 0 – before 5.2.655.3.0 – before 5.3.28 |
Weakness: CWE-532 · Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N