WSO2 API Control Plane Event Publisher Output Adapter properties information disclosure

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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2.7$0-$5k1.81

Summaryinfo

A vulnerability described as problematic has been identified in WSO2 API Control Plane, API Manager, Carbon Event Publisher Core, Identity Server, Identity Server as Key Manager, Open Banking AM, Open Banking IAM, Traffic Manager and Universal Gateway. The affected element is an unknown function of the component Event Publisher Output Adapter. Executing a manipulation of the argument properties can lead to information disclosure. The identification of this vulnerability is CVE-2026-0637. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability classified as problematic was found in WSO2 API Control Plane, API Manager, Carbon Event Publisher Core, Identity Server, Identity Server as Key Manager, Open Banking AM, Open Banking IAM, Traffic Manager and Universal Gateway. This vulnerability affects an unknown code block of the component Event Publisher Output Adapter. The manipulation of the argument properties with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality. CVE summarizes:

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.

The advisory is shared for download at security.docs.wso2.com. This vulnerability was named CVE-2026-0637 since 01/06/2026. The exploitation appears to be easy. The attack can be initiated remotely. Additional levels of successful authentication are needed for exploitation. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1592.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2026-2085). Once again VulDB remains the best source for vulnerability data.

Affected

  • Open Source WSO2 API Manager

Productinfo

Type

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 2.7
VulDB Meta Temp Score: 2.7

VulDB Base Score: 2.7
VulDB Temp Score: 2.7
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

01/06/2026 CVE reserved
08/06/2026 +211 days Advisory disclosed
08/06/2026 +0 days VulDB entry created
08/06/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: security.docs.wso2.com
Status: Confirmed

CVE: CVE-2026-0637 (🔒)
GCVE (CVE): GCVE-0-2026-0637
GCVE (VulDB): GCVE-100-386524
CERT Bund: WID-SEC-2026-2085 - WSO2 API Manager: Mehrere Schwachstellen

Entryinfo

Created: 08/06/2026 10:30
Updated: 08/06/2026 15:32
Changes: 08/06/2026 10:30 (53), 08/06/2026 15:32 (7)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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