7.4
HIGH CVSS 3.1
CVE-2026-11541
IBM WebSphere Application Server and WebSphere Application Server Liberty are affected by HTTP request smuggling
Description

IBM WebSphere Application Server 9.0, and 8.5 and IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.6 are affected by an HTTP request smuggling vulnerability.

INFO

Published Date :

June 30, 2026, 8:56 p.m.

Last Modified :

June 30, 2026, 8:56 p.m.

Remotely Exploit :

Yes !

Source :

ibm
Affected Products

The following products are affected by CVE-2026-11541 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Ibm websphere_application_server
2 Ibm websphere_application_server_liberty
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 HIGH 9a959283-ebb5-44b6-b705-dcc2bbced522
Solution
Apply the latest security patches and update IBM WebSphere Application Server versions.
  • Update IBM WebSphere Application Server to the latest version.
  • Apply security patches for affected versions.
  • Configure HTTP server for security.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-11541 vulnerability anywhere in the article.

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.