CVE-2026-8646

Published Jun 22, 2026

Last updated 3 days ago

Overview

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 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.
Source
psirt@us.ibm.com
NVD status
Analyzed
Products
websphere_application_server

Risk scores

CVSS 3.1

Type
Primary
Base score
9.1
Impact score
5.2
Exploitability score
3.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Severity
CRITICAL

Weaknesses

psirt@us.ibm.com
CWE-444

Social media

Hype score
Not currently trending

Configurations

References

Sources include official advisories and independent security research.