CVE-2025-8154 HTTP Header Injection via Webhook API in Multiple WSO2 Products Allows Response Header Manipulation
Attackers can inject arbitrary HTTP response headers via the Webhook API, enabling session hijacking and security header manipulation in WSO2 products.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-8154?
CVE-2025-8154 is a medium-severity vulnerability in Wso2 Api Manager, published on 11 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-74
Which versions are affected by CVE-2025-8154?
It affects 4 products.
Products include Wso2 Api Control Plane, Wso2 Api Manager, Wso2 Traffic Manager, Wso2 Universal Gateway.
How do I fix CVE-2025-8154?
No fix has been published for CVE-2025-8154 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-8154 being exploited?
There is no known exploitation of CVE-2025-8154 in the wild and no public exploit code.
Other vulnerabilities in Wso2 Api Manager
- CVE-2026-5430 WSO2 Multiple Products Path Traversal Vulnerability
- CVE-2026-1728 Privilege Escalation via System REST APIs in Multiple WSO2 Products Permits Admin Account Takeover
- CVE-2025-9312 Improper Certificate-Based Authentication Enforcement in Multiple WSO2 Products
- CVE-2025-10611 Potential Broken Access Control in Multiple WSO2 Products via System REST APIs
- CVE-2025-9152 Improper Privilege Management in Multiple WSO2 API Manager via keymanager-operations DCR Endpoint
Sources
Also known as GHSA-j72f-vgmh-c8hr.