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CVE-2026-9330

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CVE-2026-9330

Published: Jun 1, 2026

Modified: Jun 2, 2026

PUBLISHED

CVSS v3.1

8.5

HIGH

Description

IBM WebSphere Application Server 9.0, and 8.5 is affected by an improper validation of user-supplied data during deserialization using the SAML Web Single Sign-On component. This could result in remote code execution via a crafted HTTP request when combined with a suitable gadget chain.

VendorProductVersions

IBM

WebSphere Application Server

affected
9.0 - <= 1.1.9.12
affected
8.5

Weaknesses (CWE)

CWE-502

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Network

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

References

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