CVE-2026-8633IBM WebSphere Application Server and WebSphere Application Server Liberty are affected by multiple vulnerabilities when using when using Web Server Plug-ins
Updated under an hour ago ()
Does this affect you?
It affects IBM Web Server Plug-ins for WebSphere Application Server and WebSphere Liberty and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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.
- CVSS
- 9.8 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-94
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- ibm
- NVD analysis
- Analyzed
- Record last updated
- May 27, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
IBM Web Server Plug-ins for WebSphere Application Server and WebSphere Liberty ibm:web_server_plug_ins_for_websphere_application_server_and_websphere_liberty | 8.5, 9.0 | CNA record |
ibm websphere_application_server ibm:websphere_application_server | from 8.5.0.0 through 8.5.5.29; from 8.5.0.0 through 8.5.5.29; from 9.0.0.0 through 9.0.5.27; from 9.0.0.0 through 9.0.5.27 | NVD |
References
- https://www.ibm.com/support/pages/node/7274072vendor-advisory, patch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.