CVE-2026-8633

critical · 9.8

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.

9.8

CVSS

0.8%

EPSS (exploit prob.)

57th

EPSS percentile

2026-05-26

Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-94

Affected products

Vendor	Product	Affected versions
ibm	websphere_application_server	>= 8.5.0.0, <= 8.5.5.29
ibm	websphere_application_server	>= 8.5.0.0, <= 8.5.5.29
ibm	websphere_application_server	>= 9.0.0.0, <= 9.0.5.27
ibm	websphere_application_server	>= 9.0.0.0, <= 9.0.5.27

Check a specific version with /api/v1/cve/match.

References

https://www.ibm.com/support/pages/node/7274072

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-8633