CVE-2026-1561

IBM WebSphere Application Server Liberty Server-Side Request Forgery

Published Mar 25, 2026 CVSS 3.1 · 5.4 Medium EPSS < 1% KEV · Not listed
Description
IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.3 IBM WebSphere Application Server Liberty is vulnerable to server-side request forgery (SSRF). This may allow remote attacker to send unauthorized requests from the system, potentially leading to network enumeration or facilitating other attacks.

Remediation

Vendor Solution

Remediation/Fixes IBM strongly recommends addressing the vulnerability now by applying a currently available interim fix or fix pack that contains the fix for APAR PH70017 . To determine if a feature is enabled for IBM WebSphere Application Server Liberty, refer to How to determine if Liberty is using a specific feature . For IBM WebSphere Application Server Liberty 17.0.0.3 - 26.0.0.3 using the samlWeb-2.0 feature: · Upgrade to minimal fix pack levels as required by the interim fix and then apply the Interim Fix that resolves PH70017 --OR-- · Apply Liberty Fix Pack 26.0.0.4 or later (targeted availability 2Q2026). Additional interim fixes may be available and linked off the interim fix download page.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Apple
Apple macos
Ibm aix
Ibm i
Ibm z\/os
Linux
Linux linux Kernel
Microsoft
Microsoft windows
CPEs cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:liberty:*:*:*
cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*
cpe:2.3:o:ibm:aix:-:*:*:*:*:*:*:*
cpe:2.3:o:ibm:i:-:*:*:*:*:*:*:*
cpe:2.3:o:ibm:z\/os:-:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*
Vendors & Products Apple
Apple macos
Ibm aix
Ibm i
Ibm z\/os
Linux
Linux linux Kernel
Microsoft
Microsoft windows
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.3 IBM WebSphere Application Server Liberty is vulnerable to server-side request forgery (SSRF). This may allow remote attacker to send unauthorized requests from the system, potentially leading to network enumeration or facilitating other attacks.
Title IBM WebSphere Application Server Liberty Server-Side Request Forgery
First Time appeared Ibm
Ibm websphere Application Server
Weaknesses CWE-918
CPEs cpe:2.3:a:ibm:websphere_application_server:17.0.0.3:*:*:*:liberty:*:*:*
cpe:2.3:a:ibm:websphere_application_server:26.0.0.3:*:*:*:liberty:*:*:*
Vendors & Products Ibm
Ibm websphere Application Server
References
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
ibm
Published
Updated
Mar 26, 2026, 3:37 PM
Reserved
Jan 28, 2026, 7:33 PM
Status
Analyzed
Published
Mar 25, 2026, 9:16 PM
Modified
Jun 17, 2026, 10:16 AM