CVE-2026-0637: Sensitive Information Disclosure via Event Publisher Logging in Multiple WSO2 Products

Published Aug 6, 2026
·
Updated

When an Event Publisher output adapter is configured with irrelevant properties, the affected products log these properties. This logging occurs without sufficient validation or sanitization of the property values.

A malicious actor with access to the 'wso2carbon' log files could retrieve sensitive information, such as user credentials or other confidential data, that was inadvertently logged due to misconfiguration, potentially leading to unauthorized access.

Affected Software

23 affected components
WSO2 Event Publisher output adapter
WSO2 Api Control Plane>=4.5.0<4.5.0.50
WSO2 Api Control Plane>=4.6.0<4.6.0.14
WSO2 API Manager>=3.1.0<3.1.0.357
WSO2 API Manager>=3.2.0<3.2.0.465
WSO2 API Manager>=3.2.1<3.2.1.84
WSO2 API Manager>=4.1.0<4.1.0.249
WSO2 API Manager>=4.2.0<4.2.0.189
WSO2 API Manager>=4.3.0<4.3.0.100
WSO2 API Manager>=4.4.0<4.4.0.64
WSO2 API Manager>=4.5.0<4.5.0.49
WSO2 API Manager>=4.6.0<4.6.0.13
WSO2 Identity Server>=5.10.0<5.10.0.386
WSO2 Identity Server>=5.11.0<5.11.0.433
WSO2 Identity Server>=6.0.0<6.0.0.260
WSO2 Identity Server>=6.1.0<6.1.0.261
WSO2 Identity Server as Key Manager>=5.10.0<5.10.0.377
WSO2 Open Banking AM>=2.0.0<2.0.0.406
WSO2 Open Banking Iam>=2.0.0<2.0.0.426
WSO2 Traffic Manager>=4.5.0<4.5.0.48
WSO2 Traffic Manager>=4.6.0<4.6.0.13
WSO2 Universal Gateway>=4.5.0<4.5.0.49
WSO2 Universal Gateway>=4.6.0<4.6.0.13

Event History

Aug 6, 2026
CVE Published
via MITRE·07:33 AM
Data Sourced
via MITRE·07:33 AM
RemedyDescriptionSeverityWeakness
Data Sourced
via NVD·08:16 AM
DescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

1

What is the severity of CVE-2026-0637?

The severity of CVE-2026-0637 is classified as medium, with a score of 4.4.

2

What is the main issue in CVE-2026-0637?

CVE-2026-0637 involves sensitive information disclosure due to logging of irrelevant properties in WSO2 products.

3

Who is affected by CVE-2026-0637?

Any user or administrator of WSO2 products configured with an Event Publisher output adapter with irrelevant properties is at risk.

4

How can I mitigate CVE-2026-0637?

To mitigate CVE-2026-0637, ensure that all Event Publisher output adapters are correctly configured and review log files for sensitive information exposure.

5

What can a malicious actor do with CVE-2026-0637?

A malicious actor with access to the 'wso2carbon' log files can retrieve sensitive information logged without proper validation or sanitization.

Contact

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