CVE-2026-8633

critical

Published 2026-05-26 · Modified 2026-05-27

CVSS v3

9.8

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

CVSS v2

—

VIR risk

9.8

Description

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.

Predictions

Exploit likelihood

97%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: psirt@us.ibm.com — https://www.ibm.com/support/pages/node/7274072

Application impact

Vendor	Product	Versions	Fixed
ibm	websphere_application_server	`{"startIncluding":"8.5.0.0","endIncluding":"8.5.5.29"}`

References

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

CWEs

CWE-94

Verify integrity in audit chain (admin only). AS-IS.