Server-Side Request Forgery (SSRF) in IBM WebSphere Application Server Liberty - CVE-2026-11546
Published: July 2, 2026
Vulnerability identifier: #VU136691
CSH Severity: Medium
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-11546
CWE-ID: CWE-918
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The disclosed vulnerability allows a remote attacker to perform SSRF attacks.
The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can send a specially crafted HTTP request and trick the application to initiate requests to arbitrary systems.
Successful exploitation of this vulnerability may allow a remote attacker gain access to sensitive data, located in the local network or send malicious requests to other servers from the vulnerable system.
Affected software
IBM WebSphere Application Server Liberty
Enterprise Application Runtimes
PowerVM NovaLink
Cloud Pak for Applications
WebSphere Hybrid Edition
IBM SPSS Collaboration and Deployment Services
Enterprise Application Runtimes
PowerVM NovaLink
Cloud Pak for Applications
WebSphere Hybrid Edition
IBM SPSS Collaboration and Deployment Services
How to mitigate CVE-2026-11546
Install updates from vendor's website.
PowerVM NovaLink - addressed in versions 2.2.1.1-260708, 2.3.3-260714
External References
Related Security Bulletins
- Server-side request forgery in IBM WebSphere Application Server - Liberty
- Server-side request forgery in IBM WebSphere Hybrid Edition
- Server-side request forgery in IBM Enterprise Application Runtimes
- Server-side request forgery in IBM Cloud Pak for Applications
- Multiple vulnerabilities in IBM PowerVM Novalink
- Multiple vulnerabilities in IBM SPSS Collaboration and Deployment Services