CVE-2026-9319 CRITICAL

CVE-2026-9319: IBM WebSphere Application Server is affected by a remote code execution vulnerability

Vendor Ibm
Product WebSphere Application Server
Weakness CWE-502 · Unsafe deserialization
Published June 1, 2026
Last update June 2, 2026
View on NVD All CVEs

CVSS base score

9.0/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

June 1, 2026 CVE published
June 2, 2026 Record updated