CVE-2026-0637 - Vulnerability Details

- Sensitive Information Disclosure via Event Publisher Logging in Multiple WSO2 Products

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.

Published: 2026-08-06

Score: 4.4 Medium

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

WSO2

WSO2 API Manager

unaffected

Version	Status	Constraints
`0`	unknown	< 3.1.0
`3.1.0`	affected	< 3.1.0.357
`3.2.0`	affected	< 3.2.0.465
`3.2.1`	affected	< 3.2.1.84
`4.1.0`	affected	< 4.1.0.249
`4.2.0`	affected	< 4.2.0.189
`4.3.0`	affected	< 4.3.0.100
`4.4.0`	affected	< 4.4.0.64
`4.5.0`	affected	< 4.5.0.49
`4.6.0`	affected	< 4.6.0.13

WSO2

WSO2 Traffic Manager

unaffected

Version	Status	Constraints
`0`	unknown	< 4.5.0
`4.5.0`	affected	< 4.5.0.48
`4.6.0`	affected	< 4.6.0.13

WSO2

WSO2 API Control Plane

unaffected

Version	Status	Constraints
`0`	unknown	< 4.5.0
`4.5.0`	affected	< 4.5.0.50
`4.6.0`	affected	< 4.6.0.14

WSO2

WSO2 Universal Gateway

unaffected

Version	Status	Constraints
`0`	unknown	< 4.5.0
`4.5.0`	affected	< 4.5.0.49
`4.6.0`	affected	< 4.6.0.13

WSO2

WSO2 Identity Server

unaffected

Version	Status	Constraints
`0`	unknown	< 5.10.0
`5.10.0`	affected	< 5.10.0.386
`5.11.0`	affected	< 5.11.0.433
`6.0.0`	affected	< 6.0.0.260
`6.1.0`	affected	< 6.1.0.261
`7.0.0`	affected	< 7.0.0.139
`7.1.0`	affected	< 7.1.0.47
`7.2.0`	affected	< 7.2.0.8

WSO2

WSO2 Identity Server as Key Manager

unaffected

Version	Status	Constraints
`0`	unknown	< 5.10.0
`5.10.0`	affected	< 5.10.0.377

WSO2

WSO2 Open Banking IAM

unaffected

Version	Status	Constraints
`0`	unknown	< 2.0.0
`2.0.0`	affected	< 2.0.0.426

WSO2

WSO2 Open Banking AM

unaffected

Version	Status	Constraints
`0`	unknown	< 2.0.0
`2.0.0`	affected	< 2.0.0.406

WSO2

WSO2 Carbon Event Publisher Core

unknown

Version	Status	Constraints
`5.2.24`	affected	< 5.2.24.11
`5.2.26`	affected	< 5.2.26.24
`5.2.27`	affected	< 5.2.27.7
`5.2.41`	affected	< 5.2.41.8
`5.2.45`	affected	< 5.2.45.2
`5.2.50`	affected	< 5.2.50.3
`5.2.57`	affected	< 5.2.57.12
`5.2.58`	affected	< 5.2.58.3
`5.2.61`	affected	< 5.2.61.4
`5.2.64`	affected	< 5.2.64.1
`5.3.5`	affected	< 5.3.5.10
`5.3.11`	affected	< 5.3.11.7
`5.3.15`	affected	< 5.3.15.6
`5.3.20`	affected	< 5.3.20.3
`5.3.27`	affected	< 5.3.27.1
`x`	unaffected	≤ *

No data.

Vendor Product Confidence Versions

Wso2

Wso2 Api Control Plane

100%

Version	Status	Scheme	Platform
`[0,4.5.0)`	unknown	generic	—
`[4.5.0,4.5.0.50)`	affected	generic	—
`[4.6.0,4.6.0.14)`	affected	generic	—

Wso2

Wso2 Api Manager

100%

Version	Status	Scheme	Platform
`[0,3.1.0)`	unknown	generic	—
`[3.1.0,3.1.0.357)`	affected	generic	—
`[3.2.0,3.2.0.465)`	affected	generic	—
`[3.2.1,3.2.1.84)`	affected	generic	—
`[4.1.0,4.1.0.249)`	affected	generic	—
`[4.2.0,4.2.0.189)`	affected	generic	—
`[4.3.0,4.3.0.100)`	affected	generic	—
`[4.4.0,4.4.0.64)`	affected	generic	—
`[4.5.0,4.5.0.49)`	affected	generic	—
`[4.6.0,4.6.0.13)`	affected	generic	—

Wso2

Wso2 Carbon Event Publisher Core

100%

Version	Status	Scheme	Platform
`[5.2.24,5.2.24.11)`	affected	generic	—
`[5.2.26,5.2.26.24)`	affected	generic	—
`[5.2.27,5.2.27.7)`	affected	generic	—
`[5.2.41,5.2.41.8)`	affected	generic	—
`[5.2.45,5.2.45.2)`	affected	generic	—
`[5.2.50,5.2.50.3)`	affected	generic	—
`[5.2.57,5.2.57.12)`	affected	generic	—
`[5.2.58,5.2.58.3)`	affected	generic	—
`[5.2.61,5.2.61.4)`	affected	generic	—
`[5.2.64,5.2.64.1)`	affected	generic	—
`[5.3.5,5.3.5.10)`	affected	generic	—
`[5.3.11,5.3.11.7)`	affected	generic	—
`[5.3.15,5.3.15.6)`	affected	generic	—
`[5.3.20,5.3.20.3)`	affected	generic	—
`[5.3.27,5.3.27.1)`	affected	generic	—
`[x,*]`	unaffected	generic	—

Wso2

Wso2 Identity Server

100%

Version	Status	Scheme	Platform
`[0,5.10.0)`	unknown	generic	—
`[5.10.0,5.10.0.386)`	affected	generic	—
`[5.11.0,5.11.0.433)`	affected	generic	—
`[6.0.0,6.0.0.260)`	affected	generic	—
`[6.1.0,6.1.0.261)`	affected	generic	—
`[7.0.0,7.0.0.139)`	affected	generic	—
`[7.1.0,7.1.0.47)`	affected	generic	—
`[7.2.0,7.2.0.8)`	affected	generic	—

Wso2

Wso2 Identity Server As Key Manager

100%

Version	Status	Scheme	Platform
`[0,5.10.0)`	unknown	generic	—
`[5.10.0,5.10.0.377)`	affected	generic	—

Wso2

Wso2 Open Banking Am

100%

Version	Status	Scheme	Platform
`[0,2.0.0)`	unknown	generic	—
`[2.0.0,2.0.0.406)`	affected	generic	—

Wso2

Wso2 Open Banking Iam

100%

Version	Status	Scheme	Platform
`[0,2.0.0)`	unknown	generic	—
`[2.0.0,2.0.0.426)`	affected	generic	—

Wso2

Wso2 Traffic Manager

100%

Version	Status	Scheme	Platform
`[0,4.5.0)`	unknown	generic	—
`[4.5.0,4.5.0.48)`	affected	generic	—
`[4.6.0,4.6.0.13)`	affected	generic	—

Wso2

Wso2 Universal Gateway

100%

Version	Status	Scheme	Platform
`[0,4.5.0)`	unknown	generic	—
`[4.5.0,4.5.0.49)`	affected	generic	—
`[4.6.0,4.6.0.13)`	affected	generic	—

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Remediation

Vendor Solution

Follow the instructions given on https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2025-4897/#solution

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00113.

Exploitation none

Automatable no

Technical Impact partial

References

Link	Providers
https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2025-4897/

History

Fri, 07 Aug 2026 10:30:00 +0000

Type	Values Removed	Values Added
First Time appeared		Wso2 Wso2 wso2 Api Control Plane Wso2 wso2 Api Manager Wso2 wso2 Carbon Event Publisher Core Wso2 wso2 Identity Server Wso2 wso2 Identity Server As Key Manager Wso2 wso2 Open Banking Am Wso2 wso2 Open Banking Iam Wso2 wso2 Traffic Manager Wso2 wso2 Universal Gateway
Vendors & Products		Wso2 Wso2 wso2 Api Control Plane Wso2 wso2 Api Manager Wso2 wso2 Carbon Event Publisher Core Wso2 wso2 Identity Server Wso2 wso2 Identity Server As Key Manager Wso2 wso2 Open Banking Am Wso2 wso2 Open Banking Iam Wso2 wso2 Traffic Manager Wso2 wso2 Universal Gateway

Thu, 06 Aug 2026 13:30:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Thu, 06 Aug 2026 08:15:00 +0000

Type	Values Removed	Values Added
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.
Title		Sensitive Information Disclosure via Event Publisher Logging in Multiple WSO2 Products
Weaknesses		CWE-532
References		https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2025-4897/
Metrics		cvssV3_1 `{'score': 4.4, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N'}`

Subscriptions

Wso2 Wso2 Api Control Plane Wso2 Api Manager Wso2 Carbon Event Publisher Core Wso2 Identity Server Wso2 Identity Server As Key Manager Wso2 Open Banking Am Wso2 Open Banking Iam Wso2 Traffic Manager Wso2 Universal Gateway

MITRE

Status: PUBLISHED

Assigner: WSO2

Published: 2026-08-06T07:33:20.334Z

Updated: 2026-08-06T12:32:09.382Z

Reserved: 2026-01-06T05:51:26.145Z

Link: CVE-2026-0637

Vulnrichment

Updated: 2026-08-06T12:32:06.365Z

NVD

No data.

Redhat

No data.

OpenCVE Enrichment

Updated: 2026-08-07T10:01:10Z

Weaknesses

CWE-532

Tracking

Attack Vector Local

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction None

Exploitation none

Automatable no

Technical Impact partial

Subscriptions

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