SB2026040252 - Multiple vulnerabilities in IBM WebSphere Application Server Liberty
Published: April 2, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 vulnerabilities.
1) Server-Side Request Forgery (SSRF) (CVE-ID: CVE-2026-1561)
CWE-ID: CWE-918 - Server-Side Request Forgery (SSRF)
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear
The disclosed vulnerability allows a remote user to perform SSRF attacks.
The vulnerability exists due to insufficient validation of user-supplied input when the samlWeb-2.0 feature enabled. A remote user 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.
2) Weak password requirements (CVE-ID: CVE-2025-14917)
CWE-ID: CWE-521 - Weak Password Requirements
CVSSv4: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows an attacker to perform a brute-force attack.
The vulnerability exists due to weak password requirements when the appSecurity-1.0, appSecurity-2.0, appSecurity-3.0, appSecurity-4.0 or appSecurity-5.0 feature is enabled. As a result users can set weak passwords to access their accounts. A remote attacker can perform brute-force attack and gain unauthorized access to the application.
3) Information disclosure (CVE-ID: CVE-2025-14915)
CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote user to gain access to potentially sensitive information.
The vulnerability exists due to excessive data output by the application with the restConnector-1.0 or restConnector-2.0 feature enabled. A remote authenticated user can gain unauthorized access to sensitive information and escalate privileges within thin the application.
Remediation
Install update from vendor's website.