CVE-2026-16192

IBM WebSphere Application Server Liberty is affected by a denial of service

Published Jul 28, 2026 CVSS 3.1 · 7.1 High EPSS < 1% KEV · Not listed
Description
IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.8 is affected by a denial of service vulnerability when the restConnector-2.0 feature is enabled.

Remediation

Vendor Solution

IBM strongly recommends addressing the vulnerability now by applying a currently available interim fix or fix pack that contains the fix for APAR DT496294. 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 https://www.ibm.com/support/pages/node/6553910 .  For IBM WebSphere Application Server Liberty 17.0.0.3 - 26.0.0.8 using the restConnector-1.0 or restConnector-2.0 feature(s):  · Upgrade to minimal fix pack levels as required by the interim fix and then apply the Interim Fix that resolves DT496294 https://www.ibm.com/support/pages/node/7281124 --OR-- · Apply Liberty Fix Pack 26.0.0.9 or later (targeted availability 3Q2026).  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
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 26.0.0.8 is affected by a denial of service vulnerability when the restConnector-2.0 feature is enabled.
Title IBM WebSphere Application Server Liberty is affected by a denial of service
First Time appeared Ibm
Ibm websphere Application Server Liberty
Weaknesses CWE-674
CPEs cpe:2.3:a:ibm:websphere_application_server___liberty:17.0.0.3:*:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_application_server___liberty:26.0.0.8:*:*:*:*:*:*:*
Vendors & Products Ibm
Ibm websphere Application Server Liberty
References
Metrics cvssV3_1

{'score': 7.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
ibm
Published
Updated
Jul 29, 2026, 12:40 PM
Reserved
Jul 18, 2026, 1:57 AM
Status
Analyzed
Published
Jul 28, 2026, 8:17 PM
Modified
Oct 23, 2026, 11:10 PM