CVE-2026-8633CWE-94

IBM WebSphere Application Server and WebSphere Application Server Liberty are affected by multiple vulnerabilities when using when using Web Server Plug-ins

Critical · published May 26, 2026

CVSS v3.1
9.8
EPSS
1%
Percentile
60.7
In the wild
Unconfirmed
What it is

IBM Web Server Plug-ins for WebSphere Application Server and WebSphere Liberty 8.5, 9.0 IBM WebSphere Application Server and WebSphere Application Server Liberty are vulnerable to remote code execution in the Web Server Plug-ins, through a specially crafted request.

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00943 · 60.7th percentile
Weakness
CWE-94 · Improper Control of Generation of Code ('Code Injection')
Published
2026-05-26T17:19Z
EPSS history
Timeline
  • 26 MAY 17:19Z
    IBM WebSphere Application Server and WebSphere Application Server Liberty are affected by multiple vulnerabilities when using when using Web Server Plug-ins
    cvelistv5