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CVE-2026-9338— IBM WebSphere Application Server prior to 9.0.5.29 and 8.5.5.31 are affected by multiple vulnerabilities

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 9.0版本和8.5版本存在资源管理错误漏洞，该漏洞源于发送特制请求，可能导致远程攻击者触发资源过度消耗，降低受影响服务的可用性。

CVSS 5.3 · Medium EPSS 0.49% · P41

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 2

VendorProduct Version RangeStatus
IBM WebSphere Application Server 9.0 affected
8.5 affected
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I. Basic Information for CVE-2026-9338

Vulnerability Information
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Vulnerability Title
IBM WebSphere Application Server prior to 9.0.5.29 and 8.5.5.31 are affected by multiple vulnerabilities
Source: CVE Program / CVE List V5
Vulnerability Description
IBM WebSphere Application Server 9.0, and 8.5 is vulnerable to a denial of service, caused by sending a specially-crafted request. A remote attacker could exploit this vulnerability to trigger excessive resource consumption, potentially leading to reduced availability of the affected service.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5
Vulnerability Title
IBM WebSphere Application Server 资源管理错误漏洞
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 9.0版本和8.5版本存在资源管理错误漏洞，该漏洞源于发送特制请求，可能导致远程攻击者触发资源过度消耗，降低受影响服务的可用性。
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 9.0 cpe:2.3:a:ibm:websphere_application_server:9.0:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-9338

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III. Intelligence Information for CVE-2026-9338

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Vendor Advisories for CVE-2026-9338 (1)

Same Patch Batch · IBM · 2026-09-10 · 49 CVEs total

CVE-2026-81204 9.8 CRITICAL Langflow is vulnerable to arbitrary code execution due to multiple incomplete code securit
CVE-2026-79724 9.8 CRITICAL Langflow is vulnerable to arbitrary code execution due to multiple incomplete code securit
CVE-2026-85025 9.8 CRITICAL Langflow is vulnerable to arbitrary code execution due to multiple incomplete code securit
CVE-2026-78573 9.8 CRITICAL IBM ContextForge MCP Gateway is affected by use of default credentials
CVE-2026-82107 9.6 CRITICAL DataStage on Cloud Pak for Data has several vulnerabilities due to open source software
CVE-2026-82100 9.6 CRITICAL DataStage on Cloud Pak for Data has several vulnerabilities due to open source software
CVE-2026-80424 9.1 CRITICAL DataStage on Cloud Pak for Data has several vulnerabilities due to open source software
CVE-2026-19646 9.1 CRITICAL Multiple vulnerabilities affect IBM License Key Server Administration and Reporting Tool a
CVE-2026-79742 8.8 HIGH Langflow is vulnerable to arbitrary code execution due to multiple incomplete code securit
CVE-2026-78569 8.8 HIGH Langflow is vulnerable to arbitrary code execution due to multiple incomplete code securit
CVE-2026-82095 8.8 HIGH DataStage on Cloud Pak for Data has several vulnerabilities due to open source software
CVE-2026-82092 8.8 HIGH DataStage on Cloud Pak for Data has several vulnerabilities due to open source software
CVE-2026-81211 8.8 HIGH Langflow is vulnerable to arbitrary code execution due to multiple incomplete code securit
CVE-2026-81941 8.8 HIGH Langflow is vulnerable to arbitrary code execution due to multiple incomplete code securit
CVE-2026-78575 8.8 HIGH Langflow is vulnerable to arbitrary code execution due to multiple incomplete code securit
CVE-2026-81940 8.8 HIGH Langflow is vulnerable to arbitrary code execution due to multiple incomplete code securit
CVE-2026-81554 8.8 HIGH DataStage on Cloud Pak for Data has several vulnerabilities due to open source software
CVE-2026-81551 8.8 HIGH DataStage on Cloud Pak for Data has several vulnerabilities due to open source software
CVE-2026-81550 8.8 HIGH DataStage on Cloud Pak for Data has several vulnerabilities due to open source software
CVE-2026-75777 8.8 HIGH Multiple vulnerabilities in IBM Aspera Enterprise Webapps

Showing top 20 of 49 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: WebSphere Application Server
Same vendor: IBM
Same weakness: CWE-400

V. Comments for CVE-2026-9338

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