CVE-2026-0637 Sensitive Information Disclosure via Event Publisher Logging in Multiple WSO2 Products
Attackers with log access can retrieve sensitive credentials due to unsanitized logging of misconfigured Event Publisher properties in WSO2 products.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-0637?
CVE-2026-0637 is a medium-severity vulnerability in Wso2 Api Manager, published on 6 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
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.
Weakness: CWE-532
Which versions are affected by CVE-2026-0637?
It affects 8 products.
Products include Wso2 Api Control Plane, Wso2 Api Manager, Wso2 Identity Server, Wso2 Identity Server as Key Manager, Wso2 Open Banking Am, Wso2 Open Banking Iam and 2 more.
How do I fix CVE-2026-0637?
No fix has been published for CVE-2026-0637 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-0637 being exploited?
There is no known exploitation of CVE-2026-0637 in the wild and no public exploit code.
Other vulnerabilities in Wso2 Api Manager
- CVE-2026-5430 WSO2 Multiple Products Path Traversal Vulnerability
- CVE-2026-1728 Privilege Escalation via System REST APIs in Multiple WSO2 Products Permits Admin Account Takeover
- CVE-2025-9312 Improper Certificate-Based Authentication Enforcement in Multiple WSO2 Products
- CVE-2025-10611 Potential Broken Access Control in Multiple WSO2 Products via System REST APIs
- CVE-2025-9152 Improper Privilege Management in Multiple WSO2 API Manager via keymanager-operations DCR Endpoint
Sources
Also known as GHSA-q9jj-jm6w-fpgf.