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CVE-2026-11806— IBM WebSphere Application Server Liberty is affected by a an arbitrary file read vulnerability

CVSS 7.2 · High EPSS 0.47% · P38

Affected Version Matrix 1

VendorProductVersion RangeStatus
IBMWebSphere Application Server - Liberty17.0.0.3≤ 26.0.0.6affected
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I. Basic Information for CVE-2026-11806

Vulnerability Information
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Vulnerability Title
IBM WebSphere Application Server Liberty is affected by a an arbitrary file read vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.6 is affected by an arbitrary file read vulnerability with the restConnector-2.0 feature enabled.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
HTTP请求的解释不一致性(HTTP请求私运)
Source: NVD (National Vulnerability Database)
Vulnerability Title
IBM WebSphere Application Server Liberty 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
IBM websphere application server liberty是美国IBM公司的一个应用服务器运行时环境。 IBM WebSphere Application Server Liberty 17.0.0.3至26.0.0.6版本存在输入验证错误漏洞，该漏洞源于restConnector-2.0功能问题，可能导致任意文件读取。
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

VendorProductAffected VersionsCPESubscribe
IBMWebSphere Application Server - Liberty 17.0.0.3 ~ 26.0.0.6 cpe:2.3:a:ibm:websphere_application_server___liberty:17.0.0.3:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-11806

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III. Intelligence Information for CVE-2026-11806

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Vendor Advisories for CVE-2026-11806 (1)

Same Patch Batch · IBM · 2026-06-30 · 43 CVEs total

CVE-2026-1013410.0 CRITICALUnauthenticated Server-Side RCE via PythonCodeStructuredTool in Public Flows
CVE-2026-78739.9 CRITICALCode Injection Vulnerability in Code Validation Endpoint
CVE-2026-78719.8 CRITICALInsecure Deserialization in Redis Cache Backend
CVE-2026-78039.8 CRITICALFlow Validation Bypass via Empty Component Type Field
CVE-2026-101099.8 CRITICALIBM® Db2® is vulnerable to remote code execution due to improper pre-auth DRDA handshake h
CVE-2026-101409.6 CRITICALCross-Tenant API Key Reuse and Billing Fraud in Langflow Voice Mode Subsystem
CVE-2026-117089.3 CRITICALIBM WebSphere Application Server is affected by a cross-site scripting vulnerability
CVE-2026-117129.3 CRITICALIBM WebSphere Application Server is affected by a cross-site scripting vulnerability
CVE-2026-76639.1 CRITICALUnauthenticated Cross-User MCP Resource Access and Tool Execution via Streamable Transport
CVE-2026-78749.1 CRITICALWeak Cryptographic Key Derivation Exposed All Stored Credentials
CVE-2026-101298.5 HIGHSSRF via HTTP Redirect Following in Langflow API Request Component
CVE-2026-115948.5 HIGHIBM WebSphere Application Server is affected by multiple cross-site scripting vulnerabilit
CVE-2026-117148.5 HIGHIBM WebSphere Application Server Liberty is affected by an authorization bypass vulnerabil
CVE-2026-105648.2 HIGHSSRF Vulnerability in Langflow OSS Legacy Components Bypasses Protection
CVE-2026-105608.2 HIGHUnauthenticated Access to Private Flow Build Events and Cancellation in Langflow OSS
CVE-2025-363598.1 HIGHIBM DevOps Loop is susceptible to an Insufficient Session Expiration vulnerability.
CVE-2026-134497.6 HIGHXXE attack in IBM Business Automation Manager Open Editions
CVE-2026-137727.5 HIGHIBM WebSphere eXtreme Scale's OQL is affected by remote code execution
CVE-2026-137597.5 HIGHIBM WebSphere eXtreme Scale is affected by Insecure Deserilization
CVE-2026-115417.4 HIGHIBM WebSphere Application Server and WebSphere Application Server Liberty are affected by

Showing top 20 of 43 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: WebSphere Application Server - Liberty
Same vendor: IBM
Same weakness: CWE-444

V. Comments for CVE-2026-11806

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