CVE-2026-105442
High
Description
IBM WebSphere Application Server 8.5, and 9.0 and IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.10 Liberty could allow a remote attacker to cause a denial of service caused by an insecure deserialization in the messaging service.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Ibm Websphere Application Server
PublishedOct 13, 2026
First seenOct 13, 2026
Weakness typeCWE-502Deserialization of untrusted data
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| ibm websphere_application_server | 8.5, 9.0 | — |
| ibm websphere_application_server_liberty | 17.0.0.3 ≤ v ≤ 26.0.0.10 | — |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.