CVE-2026-8858

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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.6 / Impact : 5.9

Attack Vector ADJACENT_NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.ibm.com/support/pages/node/7277344	Vendor Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:a:ibm:i:*:*:*:*:*:*:*:*

cpe:2.3:o:ibm:i:-:*:*:*:*:*:*:*

History

23 Jun 2026, 20:37

Type	Values Removed	Values Added
First Time		Ibm Ibm i
CPE		cpe:2.3:a:ibm:i:::::::: cpe:2.3:o:ibm:i:-:::::::*
References	~~() https://www.ibm.com/support/pages/node/7277344 -~~	() https://www.ibm.com/support/pages/node/7277344 - Vendor Advisory

22 Jun 2026, 16:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-22 16:16

Updated : 2026-06-23 20:37

NVD link : CVE-2026-8858

Mitre link : CVE-2026-8858

CVE.ORG link : CVE-2026-8858

JSON object : View

Products Affected

ibm

i

CWE

CWE-94

Improper Control of Generation of Code ('Code Injection')

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