PT-2026-45543 · Ibm · Ibm Websphere Application Server

CVE-2026-9311 · Published 2026-06-01 · Updated 2026-07-22

Positive Technologies (AI Summary)

CVSS v3.1

9.0

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions IBM WebSphere Application Server version 8.5 IBM WebSphere Application Server version 9.0

Description Remote code execution is possible due to the bypass of security controls.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

RCE

Code Injection

Weakness Enumeration

CWE-94

Related Identifiers

CVE-2026-9311

Affected Products

Ibm Websphere Application Server

References · 7

• https://nvd.nist.gov/vuln/detail/CVE-2026-9311 · Security Note
• https://twitter.com/CCBalert/status/2061805487553740918 · Twitter Post
• https://twitter.com/NewsNerdie/status/2062595854200975574 · Twitter Post
• https://ibm.com/support/pages/node/7274733 · Patch, Vendor Advisory
• https://twitter.com/knaepp/status/2061487998709981512 · Twitter Post
• https://twitter.com/integ_sec/status/2069446810431553577 · Twitter Post
• https://t.me/cveNotify/211632 · Telegram Post