IBM WebSphere Application Server vulnerabilities
66 known CVE vulnerabilities in IBM WebSphere Application Server, translated and rated.
- CVE-2026-15325High
IBM WebSphere Application Server and IBM WebSphere Application Server - Liberty is vulnerable to HTTP request smuggling due to improper handling of TRACE requests.
- CVE-2026-15064High
IBM WebSphere Application Server and IBM WebSphere Application Server - Liberty is vulnerable to HTTP Response Smuggling due to improper handling of non-standard HTTP version tokens.
- CVE-2026-14981High
IBM WebSphere Application Server and IBM WebSphere Application Server - Liberty are affected by a denial of service vulnerability in the HTTP channel due to unbounded allocation of resources without limits.
- CVE-2026-14974High
IBM WebSphere Application Server 8.5 and 9.0 traditional could allow a remote attacker to execute arbitrary code caused by unsafe deserialization of untrusted data.
- CVE-2026-14528High
IBM WebSphere Application Server 9.0 and 8.5 traditional could allow a remote attacker to obtain sensitive information.
- CVE-2026-14515Medium
IBM WebSphere Application Server 8.5 and 9.0 traditional could allow a remote attacker to conduct a cross-site scripting attack.
- CVE-2026-16184High
IBM WebSphere Application Server versions 9.0 and 8.5 could allow a remote attacker to bypass authentication by sending a crafted unauthenticated request.
- CVE-2026-9171High
IBM WebSphere Application Server and WebSphere Application Server Liberty are vulnerable to a denial of service, caused by sending a specially-crafted request. A remote attacker could exploit this vulnerability to cause the server to consume memory resources.
- CVE-2026-11594High
IBM WebSphere Application Server 9.0 and 8.5 is affected by a cross-site scripting vulnerability in the administrative console. This allows an attacker to inject malicious scripts into the server management interface.
- CVE-2026-11595Medium
IBM WebSphere Application Server 9.0 and 8.5 contain a vulnerability that could allow a remote attacker to obtain sensitive information from the integrated help system of the administrative console.
- CVE-2026-10852Medium
IBM WebSphere Application Server and IBM WebSphere Application Server Liberty are vulnerable to a denial of service (DoS) attack in the WebSphere WebServer Plug-in component. An attacker can send crafted requests to the web server, causing system overload.
- CVE-2026-9072High
IBM WebSphere Application Server and IBM WebSphere Application Server Liberty, when using Intelligent Management with the WebSphere WebServer Plug-in component, are vulnerable to remote code execution and denial of service. This vulnerability can be exploited when an attacker impersonates backend servers and sends crafted responses to the plug-in.
- CVE-2026-9006High
IBM WebSphere Application Server versions 9.0 and 8.5 are vulnerable to server-side request forgery (SSRF) with the Ajax Proxy configured. This may allow an attacker to send unauthorized requests from the system, resulting in a security bypass or information disclosure.
- CVE-2026-8858High
IBM WebSphere Application Server and Liberty are vulnerable to remote code execution and denial of service in the WebSphere Web Server Plug-in component. This vulnerability can be exploited when an attacker impersonates the application server and sends crafted responses to the plug-in.
- CVE-2026-9330High
IBM WebSphere Application Server 9.0 and 8.5 is affected by improper validation of user-supplied data during deserialization using the SAML Web Single Sign-On component. This could result in remote code execution via a crafted HTTP request when combined with a suitable gadget chain.
- CVE-2026-8620High
IBM Web Server Plug-ins for WebSphere Application Server and WebSphere Liberty are vulnerable to HTTP request smuggling. An attacker can send a specially crafted request that is misinterpreted by the server.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

