Description
IBM WebSphere Application Server 9.0, and 8.5 traditional is vulnerable to pre-authentication unsafe deserialization which could allow a remote attacker to bypass authentication or execute arbitrary code.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| IBM | WebSphere Application Server | 9.0, 8.5 | — |
Advisories 1
- WID-SEC-2026-2564 IBM WebSphere Application Server und Application Server Liberty: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 4, 2026
References
- https://www.ibm.com/support/pages/node/7281649 vendor-advisory patch