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CRITICAL · 9.0

CVE-2026-9319

IBM WebSphere Application Server 9.0, and 8.5 is vulnerable to potential remote code execution due to deserialization of untrusted data via JAX-WS endpoints with WS-Security.

Vulnerability Description

IBM WebSphere Application Server 9.0, and 8.5 is vulnerable to potential remote code execution due to deserialization of untrusted data via JAX-WS endpoints with WS-Security.

CVSS Score

9.0

CRITICAL

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
IbmWebsphere Application Server>= 8.5.0.0, < 8.5.5.30

Related Weaknesses (CWE)

CWE-502

References

FAQ

What is CVE-2026-9319?

CVE-2026-9319 is a vulnerability with a CVSS score of 9.0 (CRITICAL). IBM WebSphere Application Server 9.0, and 8.5 is vulnerable to potential remote code execution due to deserialization of untrusted data via JAX-WS endpoints with WS-Security.

How severe is CVE-2026-9319?

CVE-2026-9319 has been rated CRITICAL with a CVSS base score of 9.0/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2026-9319?

Check the references section above for vendor advisories and patch information. Affected products include: Ibm Websphere Application Server.