CVE-2026-8858
IBM i is Affected By Denial of Service, HTTP Request Smuggling, and Remote Code Execution Vulnerabilities in IBM WebSphere Application Server Liberty [, , , , ]
Description
IBM i 7.6, 7.5, 7.4, and 7.3, IBM WebSphere Application Server and IBM WebSphere Application Server Liberty are vulnerable to remote code execution and denial of service in the WebSphere Web Server Plug-in component. This vulnerability can be exploited when an attacker impersonates the application server and sends crafted responses to the plug-in.
INFO
Published Date :
June 22, 2026, 2:16 p.m.
Last Modified :
June 22, 2026, 2:19 p.m.
Remotely Exploit :
No
Source :
ibm
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | 9a959283-ebb5-44b6-b705-dcc2bbced522 |
Solution
- Update IBM i systems to the latest version.
- Apply necessary WebSphere Application Server updates.
- Update the WebSphere Web Server Plug-in component.
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CVE-2026-8858 vulnerability anywhere in the article.