Code injection in IBM Web Server Plug-ins for WebSphere Application Server and WebSphere…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-94.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| IBM | Web Server Plug-ins for WebSphere Application Server and WebSphere Liberty | 8.5, 9.0 | — | No fix listed | CNA |
- Web Server Plug-ins for WebSphere Application Server and WebSphere Liberty VendorIBM Affected 8.5, 9.0 Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:-:*:*:* | 8.5.0.0 – 8.5.5.29 | Vulnerable | IBM |
| cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:liberty:*:*:* | 8.5.0.0 – 8.5.5.29 | Vulnerable | IBM |
| cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:-:*:*:* | 9.0.0.0 – 9.0.5.27 | Vulnerable | IBM |
| cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:liberty:*:*:* | 9.0.0.0 – 9.0.5.27 | Vulnerable | IBM |
- cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:-:*:*:* Versions 8.5.0.0 – 8.5.5.29 Vulnerable ·IBM
- cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:liberty:*:*:* Versions 8.5.0.0 – 8.5.5.29 Vulnerable ·IBM
- cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:-:*:*:* Versions 9.0.0.0 – 9.0.5.27 Vulnerable ·IBM
- cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:liberty:*:*:* Versions 9.0.0.0 – 9.0.5.27 Vulnerable ·IBM
Remediation
No fixed version listed by the sources yet.
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Advisory ·
IBM Web Server Plug-ins for WebSphere Application Server and WebSphere Liberty — ibm.com/support/pages/node/7274072
2 records Highest priority Priority MEDIUM 1 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2026-07576 IBM WebSphere Application Server and WebSphere Application Server Liberty are affected by…Priority LOW 33
Timeline
- 2026-10-02 Threatist record created from CVE-2026-8633
- 2026-10-03 Alias added: GHSA-536c-j2qm-3hw6
References
More IBM Websphere Application Server vulnerabilities
- TI-2015-06198 Serialized-object interfaces in certain IBM analytics, business solutions, cognitive, IT… KEVCVSS 3.1CRITICAL 9.8
- TI-2010-00403 modules/arch/win32/mod_isapi.c in mod_isapi in the Apache HTTP Server 2.0.37 through… CVSS 2.0HIGH 10.0
- TI-2019-03185 Deserialization of untrusted data in IBM WebSphere Application Server CVSS 3.1CRITICAL 9.8
- TI-2020-03809 Deserialization of untrusted data in IBM WebSphere Application Server CVSS 3.1CRITICAL 9.8
- TI-2025-24648 IBM WebSphere Application Server code execution CVSS 3.1CRITICAL 9.8
- TI-2020-03807 Deserialization of untrusted data in IBM WebSphere Application Server CVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-8633 · CVE Program
- CVE-2026-8633 · NVD
- FIRST EPSS
- GHSA-536c-j2qm-3hw6 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences