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CVE-2026-8400— Multiple Vulnerabilities in IBM® Java SDK affect IBM WebSphere Application Server and WebSphere Application Server Liberty due to the July 2026 CPU

Quick assessment

Affected
IBM WebSphere Application Server
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

IBM Websphere Application Server是美国IBM公司的一个部署和管理企业级应用的应用服务器中间件。 IBM Websphere Application Server 8.5版本和9.0版本存在代码注入漏洞，该漏洞源于IBM SDK Java Technology Edition中的ORB组件存在缺陷，可能导致恶意IIOP服务器诱导加载和实例化任意类。

CVSS 8.1 · High EPSS 0.27% · P20

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 3

VendorProduct Version RangeStatus
IBM WebSphere Application Server 8.5 affected
9.0 affected
IBM WebSphere Application Server - Liberty Continuous delivery affected
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I. Basic Information for CVE-2026-8400

Vulnerability Information
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Vulnerability Title
Multiple Vulnerabilities in IBM® Java SDK affect IBM WebSphere Application Server and WebSphere Application Server Liberty due to the July 2026 CPU
Source: CVE Program / CVE List V5
Vulnerability Description
IBM WebSphere Application Server 8.5, and 9.0 and IBM WebSphere Application Server - Liberty Continuous delivery has a flaw in the ORB component in IBM SDK, Java Technology Edition, may allow a malicious IIOP server to induce loading and instantation of arbitrary classes.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
使用外部可控制的输入来选择类或代码(不安全的反射)
Source: CVE Program / CVE List V5
Vulnerability Title
IBM Websphere Application Server 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
IBM Websphere Application Server是美国IBM公司的一个部署和管理企业级应用的应用服务器中间件。 IBM Websphere Application Server 8.5版本和9.0版本存在代码注入漏洞，该漏洞源于IBM SDK Java Technology Edition中的ORB组件存在缺陷，可能导致恶意IIOP服务器诱导加载和实例化任意类。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
IBM WebSphere Application Server 8.5 cpe:2.3:a:ibm:websphere_application_server:8.5:*:*:*:*:*:*:*
IBM WebSphere Application Server - Liberty Continuous delivery cpe:2.3:a:ibm:websphere_application_server_liberty:continuous:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-8400

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III. Intelligence Information for CVE-2026-8400

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Vendor Advisories for CVE-2026-8400 (1)

Same Patch Batch · IBM · 2026-08-05 · 32 CVEs total

CVE-2026-8478 8.8 HIGH Langflow OSS is affected by arbitrary code execution in component generation, validation,
CVE-2026-9201 8.8 HIGH Langflow OSS is affected by arbitrary code execution in component generation, validation,
CVE-2026-17623 8.8 HIGH Langflow is affected OS Command Injection in Model Context Protocol features
CVE-2026-17632 8.8 HIGH Langflow OSS is affected by arbitrary code execution in component generation, validation,
CVE-2026-17626 8.8 HIGH Langflow is affected by security vulnerabilities in Model Context Protocol features
CVE-2026-8182 8.8 HIGH Langflow OSS is affected by arbitrary code execution in component generation, validation,
CVE-2026-17624 8.5 HIGH Langflow OSS is affected by arbitrary code execution in component generation, validation,
CVE-2026-9077 8.5 HIGH Reliance on Untrusted Inputs in a Security Decision vulnerabilities in Model Context Proto
CVE-2026-17617 8.5 HIGH Server-Side Request Forgery (SSRF) in IBM Application Gateway Operator
CVE-2026-17633 8.5 HIGH Langflow OSS is affected by arbitrary code execution in component generation, validation,
CVE-2026-10025 8.2 HIGH IBM QRadar SIEM has an XML External Entity (XXE) injection vulnerability
CVE-2026-9196 8.1 HIGH Langflow OSS is affected by arbitrary code execution in component generation, validation,
CVE-2026-8183 7.7 HIGH Langflow OSS is affected by arbitrary code execution in custom component validation and tr
CVE-2026-8446 7.5 HIGH Langflow is affected by security vulnerabilities in Model Context Protocol features
CVE-2026-9205 7.4 HIGH Langflow is affected by weaknesses in secret handling and sensitive configuration access
CVE-2026-8470 7.4 HIGH Langflow is affected by weaknesses in secret handling and sensitive configuration access
CVE-2026-17630 7.2 HIGH Langflow is affected by security vulnerabilities in Model Context Protocol features
CVE-2026-17625 7.2 HIGH Langflow is affected by OS Command Injection in Model Context Protocol features
CVE-2026-9081 7.1 HIGH Langflow OSS is affected by server-side request forgery in provider validation and API req
CVE-2026-9130 7.1 HIGH Langflow OSS is affected by arbitrary code execution in custom component validation and tr

Showing top 20 of 32 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: WebSphere Application Server
Same vendor: IBM
Same weakness: CWE-470

V. Comments for CVE-2026-8400

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