---
id: CVE-2026-18800
title: >-
  Information Disclosure via Event Publisher Logging in Multiple WSO2 Products
  Allows Retrieval of Sensitive Data
summary: >-
  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
  confident…
severity: medium
cvss: 4.4
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N'
cvssSource: cna
cwe:
  - CWE-532
vendor: WSO2
product: WSO2 API Manager
affected:
  - api_manager >= 3.1.0 < 3.1.0.357
  - api_manager >= 3.2.0 < 3.2.0.465
  - api_manager >= 3.2.1 < 3.2.1.84
  - api_manager >= 4.1.0 < 4.1.0.249
  - api_manager >= 4.2.0 < 4.2.0.189
  - api_manager >= 4.3.0 < 4.3.0.100
  - api_manager >= 4.4.0 < 4.4.0.64
  - api_manager >= 4.5.0 < 4.5.0.49
  - api_manager >= 4.6.0 < 4.6.0.13
  - traffic_manager >= 4.5.0 < 4.5.0.48
  - traffic_manager >= 4.6.0 < 4.6.0.13
  - api_control_plane >= 4.5.0 < 4.5.0.50
  - api_control_plane >= 4.6.0 < 4.6.0.14
  - universal_gateway >= 4.5.0 < 4.5.0.49
  - universal_gateway >= 4.6.0 < 4.6.0.13
  - identity_server >= 5.10.0 < 5.10.0.386
  - identity_server >= 5.11.0 < 5.11.0.433
  - identity_server >= 6.0.0 < 6.0.0.260
  - identity_server >= 6.1.0 < 6.1.0.261
  - identity_server >= 7.0.0 < 7.0.0.139
  - identity_server >= 7.1.0 < 7.1.0.47
  - identity_server >= 7.2.0 < 7.2.0.8
  - identity_server_as_key_manager >= 5.10.0 < 5.10.0.377
  - open_banking_iam >= 2.0.0 < 2.0.0.426
  - open_banking_am >= 2.0.0 < 2.0.0.406
  - >-
    org.wso2.carbon.analytics-common:org.wso2.carbon.event.publisher.core <
    5.2.65
  - >-
    org.wso2.carbon.analytics-common:org.wso2.carbon.event.publisher.core >=
    5.3.0 < 5.3.28
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-02T17:09:46.475225Z'
published: '2026-11-02'
updated: '2026-11-02'
sourceUpdated: '2026-11-02T17:10:08.615Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-18800'
references:
  - url: >-
      https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2025-4897/
tags:
  - cve.org
epss: 0.00161
epssPercentile: 0.0529
ingestedAt: '2026-11-05T19:30:42.721Z'
---

## Overview

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

- `api_manager >= 3.1.0 < 3.1.0.357`
- `api_manager >= 3.2.0 < 3.2.0.465`
- `api_manager >= 3.2.1 < 3.2.1.84`
- `api_manager >= 4.1.0 < 4.1.0.249`
- `api_manager >= 4.2.0 < 4.2.0.189`
- `api_manager >= 4.3.0 < 4.3.0.100`
- `api_manager >= 4.4.0 < 4.4.0.64`
- `api_manager >= 4.5.0 < 4.5.0.49`
- `api_manager >= 4.6.0 < 4.6.0.13`
- `traffic_manager >= 4.5.0 < 4.5.0.48`
- `traffic_manager >= 4.6.0 < 4.6.0.13`
- `api_control_plane >= 4.5.0 < 4.5.0.50`
- `api_control_plane >= 4.6.0 < 4.6.0.14`
- `universal_gateway >= 4.5.0 < 4.5.0.49`
- `universal_gateway >= 4.6.0 < 4.6.0.13`
- `identity_server >= 5.10.0 < 5.10.0.386`
- `identity_server >= 5.11.0 < 5.11.0.433`
- `identity_server >= 6.0.0 < 6.0.0.260`
- `identity_server >= 6.1.0 < 6.1.0.261`
- `identity_server >= 7.0.0 < 7.0.0.139`
- `identity_server >= 7.1.0 < 7.1.0.47`
- `identity_server >= 7.2.0 < 7.2.0.8`
- `identity_server_as_key_manager >= 5.10.0 < 5.10.0.377`
- `open_banking_iam >= 2.0.0 < 2.0.0.426`
- `open_banking_am >= 2.0.0 < 2.0.0.406`
- `org.wso2.carbon.analytics-common:org.wso2.carbon.event.publisher.core < 5.2.65`
- `org.wso2.carbon.analytics-common:org.wso2.carbon.event.publisher.core >= 5.3.0 < 5.3.28`

## Remediation

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