CVE-2026-8646
HIGHIBM WebSphere Application Server and Liberty - HTTP Request Smuggling
Title source: manualDescription
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.
References (1)
Core 1
Core References
Vendor Advisory vendor-advisory
patch
https://www.ibm.com/support/pages/node/7276579
Scores
CVSS v3
7.4
EPSS
0.0034
EPSS Percentile
25.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-444
Status
published
Products (5)
IBM/WebSphere Application Server
8.5.0 - 7.0.3 Interim Fix 017
IBM/WebSphere Application Server
9.0.0 - 7.0.2 Interim Fix 035
IBM/WebSphere Application Server - Liberty
17.0.0.3 - 26.0.0.6
ibm/websphere_application_server
17.0.0.3 - 26.0.0.7
ibm/websphere_application_server
8.5.0.0 - 8.5.5.30
Published
Jun 22, 2026
Tracked Since
Jun 22, 2026