CVE-2025-8154 MEDIUM

CVE-2025-8154: HTTP Header Injection via Webhook API in Multiple WSO2 Products Allows Response Header Manipulation

Vendor Wso2
Product WSO2 API Manager
Weakness CWE-74
Published May 11, 2026
Last update May 11, 2026

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

What the vulnerability does

01Description

In Webhook API invocations, the component accepts user-supplied input for HTTP request headers without sufficient validation or sanitization, allowing these headers to be injected into HTTP responses. By exploiting this vulnerability, a malicious actor can inject or overwrite arbitrary HTTP response headers. This can lead to various adverse effects, including the manipulation of browser caching, alteration of security-related headers, and the injection of sensitive information such as cookie values, potentially enabling session hijacking or other malicious activities.

Key dates

02Disclosure timeline

May 11, 2026 CVE published
May 11, 2026 Record updated