CVE-2026-8646

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 vulnerable to HTTP request smuggling. A remote attacker could smuggle a specially crafted request to the application server thereby allowing the attacker to bypass security controls, spoof identity, escalate privilege, and expose sensitive information.

CVSS v3 7.4 HIGH

7.4^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.2 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://www.ibm.com/support/pages/node/7276579	Vendor Advisory

Configurations

Configuration 1 (hide)

AND

OR	cpe:2.3:a:ibm:websphere_application_server::::::::
	cpe:2.3:a:ibm:websphere_application_server::::::::
	cpe:2.3:a:ibm:websphere_application_server:::::liberty:::*

OR	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:-:::::::*

History

No history.

Information

Published : 2026-06-22 16:16

Updated : 2026-06-24 05:17

NVD link : CVE-2026-8646

Mitre link : CVE-2026-8646

CVE.ORG link : CVE-2026-8646

JSON object : View

Products Affected

ibm

websphere_application_server
i
aix
z\/os

microsoft

windows

linux

linux_kernel

apple

macos

CWE

CWE-444

Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')

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