Remote Code Execution Vulnerability in IBM Web Server Plug-ins for WebSphere
CVE-2026-8633

9.8CRITICAL

Key Information:

Vendor

IBM
Status
Web Server Plug-ins For Websphere Application Server And Websphere Liberty
Vendor
CVE Published:
26 May 2026

What is CVE-2026-8633?

IBM WebSphere Application Server and WebSphere Liberty are susceptible to a remote code execution vulnerability due to insecure handling of specially crafted requests in the Web Server Plug-ins. This could potentially allow an attacker to execute arbitrary code on affected systems, posing significant security risks. Users are advised to review the advisory and apply the necessary patches to mitigate this vulnerability.

Affected Version(s)

Web Server Plug-ins for WebSphere Application Server and WebSphere Liberty 8.5, 9.0

References

https://www.ibm.com/support/pages/node/7274072
vendor-advisorypatch

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.