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CVE-2026-0637— Sensitive Information Disclosure via Event Publisher Logging in Multiple WSO2 Products

Quick assessment

Affected
WSO2 WSO2 API Manager
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WSO2 API Manager是美国WSO2公司开源的一个API管理平台。 WSO2 API Manager存在日志信息泄露漏洞，该漏洞源于未对属性值进行充分的验证或清洗。

CVSS 4.4 · Medium EPSS 0.16% · P5

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage

Affected Version Matrix 49

VendorProduct Version RangeStatus
WSO2 WSO2 API Control Plane < 4.5.0 unknown
4.5.0< 4.5.0.50 affected
4.6.0< 4.6.0.14 affected
WSO2 WSO2 API Manager < 3.1.0 unknown
3.1.0< 3.1.0.357 affected
3.2.0< 3.2.0.465 affected
3.2.1< 3.2.1.84 affected
4.1.0< 4.1.0.249 affected
4.2.0< 4.2.0.189 affected
4.3.0< 4.3.0.100 affected
4.4.0< 4.4.0.64 affected
… +2 more rows
WSO2 WSO2 Carbon Event Publisher Core 5.2.24< 5.2.24.11 affected
5.2.26< 5.2.26.24 affected
5.2.27< 5.2.27.7 affected
5.2.41< 5.2.41.8 affected
5.2.45< 5.2.45.2 affected
5.2.50< 5.2.50.3 affected
5.2.57< 5.2.57.12 affected
5.2.58< 5.2.58.3 affected
… +8 more rows
WSO2 WSO2 Identity Server < 5.10.0 unknown
5.10.0< 5.10.0.386 affected
5.11.0< 5.11.0.433 affected
6.0.0< 6.0.0.260 affected
6.1.0< 6.1.0.261 affected
7.0.0< 7.0.0.139 affected
7.1.0< 7.1.0.47 affected
7.2.0< 7.2.0.8 affected
WSO2 WSO2 Identity Server as Key Manager < 5.10.0 unknown
5.10.0< 5.10.0.377 affected
WSO2 WSO2 Open Banking AM < 2.0.0 unknown
2.0.0< 2.0.0.406 affected
WSO2 WSO2 Open Banking IAM < 2.0.0 unknown
2.0.0< 2.0.0.426 affected
WSO2 WSO2 Traffic Manager < 4.5.0 unknown
4.5.0< 4.5.0.48 affected
4.6.0< 4.6.0.13 affected
WSO2 WSO2 Universal Gateway < 4.5.0 unknown
4.5.0< 4.5.0.49 affected
4.6.0< 4.6.0.13 affected
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I. Basic Information for CVE-2026-0637

Vulnerability Information
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Vulnerability Title
Sensitive Information Disclosure via Event Publisher Logging in Multiple WSO2 Products
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过日志文件的信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
WSO2 API Manager 日志信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WSO2 API Manager是美国WSO2公司开源的一个API管理平台。 WSO2 API Manager存在日志信息泄露漏洞，该漏洞源于未对属性值进行充分的验证或清洗。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
WSO2 WSO2 API Manager 3.1.0 ~ 3.1.0.357 -
WSO2 WSO2 Traffic Manager 4.5.0 ~ 4.5.0.48 -
WSO2 WSO2 API Control Plane 4.5.0 ~ 4.5.0.50 -
WSO2 WSO2 Universal Gateway 4.5.0 ~ 4.5.0.49 -
WSO2 WSO2 Identity Server 5.10.0 ~ 5.10.0.386 -
WSO2 WSO2 Identity Server as Key Manager 5.10.0 ~ 5.10.0.377 -
WSO2 WSO2 Open Banking IAM 2.0.0 ~ 2.0.0.426 -
WSO2 WSO2 Open Banking AM 2.0.0 ~ 2.0.0.406 -
WSO2 WSO2 Carbon Event Publisher Core 5.2.24 ~ 5.2.24.11 -

II. Public POCs for CVE-2026-0637

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III. Intelligence Information for CVE-2026-0637

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Vendor Advisories for CVE-2026-0637 (1)

Same Patch Batch · WSO2 · 2026-08-06 · 19 CVEs total

CVE-2026-5430 10.0 CRITICAL Authentication Bypass via JWT Algorithm Mismatch in Multiple WSO2 Products Allows Account
CVE-2026-1728 9.8 CRITICAL Privilege Escalation via System REST APIs in Multiple WSO2 Products Permits Admin Account
CVE-2025-15039 9.4 CRITICAL Account Takeover via Conditional Authentication Script Logic in Multiple WSO2 Products
CVE-2026-3418 9.1 CRITICAL Arbitrary File Upload via System REST API in Multiple WSO2 Products Allows Remote Code Exe
CVE-2025-14561 9.0 CRITICAL Access Control Bypass via Publisher REST APIs in Multiple WSO2 Products Allows Cross-Tenan
CVE-2026-3415 8.7 HIGH XML External Entity (XXE) Injection via Schema Validation in Multiple WSO2 Products Allows
CVE-2024-6541 6.8 MEDIUM Information Disclosure and Integrity Violation via Improper Message Context Handling in Mu
CVE-2024-6832 5.9 MEDIUM Account Lockout Failure via Secondary User Store Inaccessibility in Multiple WSO2 Products
CVE-2025-13394 5.4 MEDIUM Cross-Site Request Forgery via Ajax Processor Endpoints in Multiple WSO2 Products Enables
CVE-2025-12317 5.0 MEDIUM Improper Token Revocation via SOAP Services in Multiple WSO2 Products Allows Retained Acce
CVE-2024-8995 4.9 MEDIUM Authorization Code issued for Deleted User reuse in Multiple WSO2 Products Allows Unauthor
CVE-2025-13909 4.3 MEDIUM Information Disclosure via Multi-Tenant Authentication Flows in WSO2 Identity Server Allow
CVE-2025-11850 4.3 MEDIUM Improper Implicit Association via User Store Initialization in WSO2 Identity Server [Ident
CVE-2025-6508 4.3 MEDIUM User Interface Misrepresentation via Swagger UI Try-out Console in WSO2 API Manager Allows
CVE-2024-10302 4.0 MEDIUM Improper Input Validation via Signup Process in Multiple WSO2 Products Enables Content Man
CVE-2025-14779 3.8 LOW Improper Access Control via Secret Type Management API in WSO2 Identity Server
CVE-2025-13736 3.7 LOW Username Enumeration via Login Interface in Multiple WSO2 Products Allows User Account Dis
CVE-2025-12627 2.4 LOW Improper Refresh Token Implementation via User Impersonation Flow in WSO2 Identity Server

IV. Related Vulnerabilities

Same product: WSO2 API Manager
Same vendor: WSO2
Same weakness: CWE-532

V. Comments for CVE-2026-0637

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