EUVD-2026-40386

IBM WebSphere Extreme Scale 8.6.1.0 through 8.6.1.6 Approximately 50 generated CORBA stub classes in WebSphere eXtreme Scale's ogclient.jar call ORB.stringtoobject on an attacker-controlled IOR string during Java deserialization, turning any unfiltered ObjectInputStream sink in WAS into outbound...

CVE-2026-13773

CVE-2026-13773 affects IBM WebSphere eXtreme Scale 8.6.1.0–8.6.1.6. Approximately 50 generated CORBA stub classes in ogclient.jar deserialize an attacker-controlled IOR via ObjectInputStream, using ORB.string_to_object() to perform outbound IIOP SSRF to a chosen host. When combined with IBM ORB g...

CVE-2026-9002

IBM WebSphere eXtremes Scale is affected in versions 8.6.1.0–8.6.1.6 by an XDF decoder validation issue. The decoder may mishandle deeply nested Protocol Buffers messages and attacker-controlled length prefixes without proper bounds checking, enabling an adjacent attacker to trigger StackOverflow...

CVE-2026-9002 IBM WebSphere eXtremes Scale is affected by uncontrolled resource consumption when XDF is enabled

IBM WebSphere Extreme Scale 8.6.1.0 through 8.6.1.6 could allow an adjacent attacker to cause a denial of service due to improper validation in the XDF decoder. The application processes deeply nested Protocol Buffers messages and attacker-controlled length prefixes without sufficient bounds...

EUVD-2026-40379

IBM WebSphere Extreme Scale 8.6.1.0 through 8.6.1.6 could allow an adjacent attacker to cause a denial of service due to improper validation in the XDF decoder. The application processes deeply nested Protocol Buffers messages and attacker-controlled length prefixes without sufficient bounds...

CVE-2026-9002

IBM WebSphere Extreme Scale 8.6.1.0 through 8.6.1.6 could allow an adjacent attacker to cause a denial of service due to improper validation in the XDF decoder. The application processes deeply nested Protocol Buffers messages and attacker-controlled length prefixes without sufficient bounds...

Security Bulletin: IBM WebSphere Application Server is affected by server-side request forgery (CVE-2026-9006)

Summary IBM WebSphere Application Server is affected by a server-side request forgery vulnerability with the Ajax Proxy configured. Vulnerability Details CVEID:CVE-2026-9006 DESCRIPTION: IBM WebSphere Application Server 9.0, and 8.5 is vulnerable to server-side request forgery SSRF with the Ajax...

Security Bulletin: IBM WebSphere Application Server is affected by multiple vulnerabilities (CVE-2026-11712, CVE-2026-11595, CVE-2026-11708)

Summary IBM WebSphere Application Server is affected by cross-sight scripting and path traversal vulnerabilities. Vulnerability Details CVEID:CVE-2026-11712 DESCRIPTION: IBM WebSphere Application Server is affected by a cross-site scripting vulnerability in the administrative console help system...

Security Bulletin: IBM WebSphere eXtreme Scale's OQL is affected by remote code execution

Summary IBM WebSphere eXtremes Scale's OQL is affected by remote code execution CVE-2026-13772 Vulnerability Details CVEID:CVE-2026-13772 DESCRIPTION: WebSphere eXtreme Scale's Object Query Language engine resolves attacker-supplied class names via Class.forName and invokes their constructors wit...

Security Bulletin: IBM WebSphere eXtreme Scale is affected by server side request forgery when ORB is used as Transport Protocol

Summary IBM WebSphere eXtremes Scale is affected by server side request forgery when ORB is used as Transport Protocol CVE-2026-13773 Vulnerability Details CVEID:CVE-2026-13773 DESCRIPTION: Approximately 50 generated CORBA stub classes in WebSphere eXtreme Scale's ogclient.jar call...

Security Bulletin: IBM WebSphere eXtreme Scale is affected by Insecure Deserilization

Summary IBM WebSphere eXtreme Scale is affected by Insecure Deserilization of untrusted data CVE-2026-13759 Vulnerability Details CVEID:CVE-2026-13759 DESCRIPTION: WebSphere eXtreme Scale ships three ObjectInputStream subclasses WsObjectInputStream, ObjectStreamPool$ReusableInputStream,...

Security Bulletin: Security vulnerability has been found in WebSphere Application Server shipped with IBM Guardium Key Lifecycle Manager (SKLM/GKLM)

Summary WebSphere Application Server is shipped as a component of IBM Guardium Key Lifecycle Manager SKLM/GKLM. Information about a security vulnerability affecting WebSphere Application Server has been published in a security bulletin. Vulnerability Details Refer to the security bulletins listed...

PT-2026-53943

Name of the Vulnerable Software and Affected Versions IBM WebSphere Extreme Scale versions 8.6.1.0 through 8.6.1.6 Description The Object Query Language OQL engine resolves class names provided by an attacker using Class.forName and invokes their constructors without an allow-list at three sinks:...

PT-2026-53964

Name of the Vulnerable Software and Affected Versions IBM WebSphere Application Server - Liberty versions 17.0.0.3 through 26.0.0.7 Description A server-side request forgery SSRF issue exists when the apiDiscovery-1.0 feature is enabled. SSRF is a flaw that allows an attacker to induce the...

PT-2026-53963

Name of the Vulnerable Software and Affected Versions IBM WebSphere Application Server version 9.0 IBM WebSphere Application Server version 8.5 Description A cross-site scripting issue exists within the administrative console help system. Cross-site scripting is a flaw that allows an attacker to...

PT-2026-53960

Name of the Vulnerable Software and Affected Versions IBM WebSphere Application Server - Liberty versions 17.0.0.3 through 26.0.0.7 Description A server-side request forgery SSRF issue exists when the adminCenter-1.0 feature is enabled. SSRF is a flaw that allows an attacker to induce the...

PT-2026-53985

Name of the Vulnerable Software and Affected Versions IBM WebSphere Application Server version 9.0 IBM WebSphere Application Server version 8.5 Description The administrative console contains a cross-site scripting XSS flaw, which occurs when an application includes untrusted data in a web page...

PT-2026-53942

Name of the Vulnerable Software and Affected Versions IBM WebSphere Extreme Scale versions 8.6.1.0 through 8.6.1.6 Description Three ObjectInputStream subclasses WsObjectInputStream, ObjectStreamPool$ReusableInputStream, and ObjectInputStreamResolver do not install a JEP-290 class filter, which i...

PT-2026-53965

Name of the Vulnerable Software and Affected Versions IBM WebSphere Application Server - Liberty versions 17.0.0.3 through 26.0.0.6 Description An arbitrary file read issue exists when the restConnector-2.0 feature is enabled. This allows an attacker to read files from the system that they should...

IBM WebSphere eXtreme Scale 8.6.1.0 < 8.6.1.6 (7278346)

The version of IBM WebSphere eXtreme Scale installed on the remote host is prior to 8.6.1.6 IBM. It is, therefore, affected by a vulnerability as referenced in the 7278346 advisory. - IBM WebSphere eXtreme Scale could allow an adjacent attacker to cause a denial of service due to improper...