Y2
Public vulnerability disclosure

CVE-2026-18800

Information Disclosure via Event Publisher Logging in Multiple WSO2 Products Allows Retrieval of Sensitive Data

publishedCWE-532

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.

Investigate in Cyber JSONMarkdown
Technical severity4.4 mediumCVSS 3.1 · CNA: WSO2
Published2026-11-02Source updated 2026-11-02
Collected2026-11-021 attributed source

Fixes and workarounds

Fix

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

Source: CNA: WSO2

Affected products and versions

ProductVersionsAuthority
WSO2 API Manager
WSO2 		≥ 0; < 3.1.0 (unknown, custom)
≥ 3.1.0; < 3.1.0.357 (affected, custom)
≥ 3.2.0; < 3.2.0.465 (affected, custom)
≥ 3.2.1; < 3.2.1.84 (affected, custom)
≥ 4.1.0; < 4.1.0.249 (affected, custom)
≥ 4.2.0; < 4.2.0.189 (affected, custom)
≥ 4.3.0; < 4.3.0.100 (affected, custom)
≥ 4.4.0; < 4.4.0.64 (affected, custom)
≥ 4.5.0; < 4.5.0.49 (affected, custom)
≥ 4.6.0; < 4.6.0.13 (affected, custom)
Other versions: unaffected 		CNA: WSO2
WSO2 Traffic Manager
WSO2 		≥ 0; < 4.5.0 (unknown, custom)
≥ 4.5.0; < 4.5.0.48 (affected, custom)
≥ 4.6.0; < 4.6.0.13 (affected, custom)
Other versions: unaffected 		CNA: WSO2
WSO2 API Control Plane
WSO2 		≥ 0; < 4.5.0 (unknown, custom)
≥ 4.5.0; < 4.5.0.50 (affected, custom)
≥ 4.6.0; < 4.6.0.14 (affected, custom)
Other versions: unaffected 		CNA: WSO2
WSO2 Universal Gateway
WSO2 		≥ 0; < 4.5.0 (unknown, custom)
≥ 4.5.0; < 4.5.0.49 (affected, custom)
≥ 4.6.0; < 4.6.0.13 (affected, custom)
Other versions: unaffected 		CNA: WSO2
WSO2 Identity Server
WSO2 		≥ 0; < 5.10.0 (unknown, custom)
≥ 5.10.0; < 5.10.0.386 (affected, custom)
≥ 5.11.0; < 5.11.0.433 (affected, custom)
≥ 6.0.0; < 6.0.0.260 (affected, custom)
≥ 6.1.0; < 6.1.0.261 (affected, custom)
≥ 7.0.0; < 7.0.0.139 (affected, custom)
≥ 7.1.0; < 7.1.0.47 (affected, custom)
≥ 7.2.0; < 7.2.0.8 (affected, custom)
Other versions: unaffected 		CNA: WSO2
WSO2 Identity Server as Key Manager
WSO2 		≥ 0; < 5.10.0 (unknown, custom)
≥ 5.10.0; < 5.10.0.377 (affected, custom)
Other versions: unaffected 		CNA: WSO2
WSO2 Open Banking IAM
WSO2 		≥ 0; < 2.0.0 (unknown, custom)
≥ 2.0.0; < 2.0.0.426 (affected, custom)
Other versions: unaffected 		CNA: WSO2
WSO2 Open Banking AM
WSO2 		≥ 0; < 2.0.0 (unknown, custom)
≥ 2.0.0; < 2.0.0.406 (affected, custom)
Other versions: unaffected 		CNA: WSO2
WSO2 Carbon Event Publisher Core
WSO2
org.wso2.carbon.analytics-common:org.wso2.carbon.event.publisher.core 		≥ 0; < 5.2.65 (affected, custom)
≥ 5.3.0; < 5.3.28 (affected, custom)
Other versions: unaffected 		CNA: WSO2

Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.

CVSS assessments

Version / scoreVectorAuthority
3.1 / 4.4
medium		 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:NCNA: WSO2

Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

References