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CVE-2026-8850— IBM HTTP Server is affected by multiple vulnerabilities

Quick assessment

Affected
IBM HTTP 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 HTTP Server是美国国际商业机器（IBM）公司的一款企业级Web服务器软件。 IBM HTTP Server 8.5版本和9.0版本存在代码问题漏洞，该漏洞源于可选模块mod_ibm_upload可能导致拒绝服务。

CVSS 7.5 · High EPSS 0.38% · P31

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 2

VendorProduct Version RangeStatus
IBM HTTP Server 8.5.0≤ Interim Fix 002 affected
9.0 affected
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I. Basic Information for CVE-2026-8850

Vulnerability Information
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Vulnerability Title
IBM HTTP Server is affected by multiple vulnerabilities
Source: CVE Program / CVE List V5
Vulnerability Description
IBM HTTP Server 8.5, and 9.0 is vulnerable to denial of service via the optional module mod_ibm_upload.
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:H
Source: CVE Program / CVE List V5
Vulnerability Type
空指针解引用
Source: CVE Program / CVE List V5
Vulnerability Title
IBM HTTP Server 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
IBM HTTP Server是美国国际商业机器（IBM）公司的一款企业级Web服务器软件。 IBM HTTP Server 8.5版本和9.0版本存在代码问题漏洞，该漏洞源于可选模块mod_ibm_upload可能导致拒绝服务。
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 HTTP Server 8.5.0 ~ Interim Fix 002 cpe:2.3:a:ibm:http_server:8.5:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-8850

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III. Intelligence Information for CVE-2026-8850

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Vendor Advisories for CVE-2026-8850 (1)

Same Patch Batch · IBM · 2026-05-26 · 20 CVEs total

CVE-2026-3660 9.8 CRITICAL IBM Engineering Lifecycle Management - Jazz Foundation is vulnerable to Authentication Byp
CVE-2026-8633 9.8 CRITICAL IBM WebSphere Application Server and WebSphere Application Server Liberty are affected by
CVE-2026-8855 8.1 HIGH IBM HTTP Server is affected by multiple vulnerabilities
CVE-2026-8834 8.0 HIGH IBM HTTP Server is affected by multiple vulnerabilities
CVE-2026-8856 7.7 HIGH IBM HTTP Server is affected by multiple vulnerabilities
CVE-2026-8854 7.5 HIGH IBM HTTP Server is affected by multiple vulnerabilities
CVE-2026-8620 7.5 HIGH IBM WebSphere Application Server and WebSphere Application Server Liberty are affected by
CVE-2026-8835 7.3 HIGH IBM HTTP Server is affected by multiple vulnerabilities
CVE-2026-4051 7.2 HIGH IBM Engineering Lifecycle Management - Jazz Foundation is vulnerable to Server Post-Auth R
CVE-2026-3603 7.1 HIGH IBM Engineering Lifecycle Management - Jazz Foundation is vulnerable to XML external entit
CVE-2025-36126 6.4 MEDIUM IBM Cognos Analytics is affected by Cross-site scripting.
CVE-2026-8852 6.2 MEDIUM IBM HTTP Server is affected by multiple vulnerabilities
CVE-2025-13755 5.5 MEDIUM IBM® Db2® is vulnerable to credential exposure in db2diag when executing specific testcase
CVE-2025-36148 5.4 MEDIUM IBM Financial Transaction Manager for SWIFT Services for Multiplatforms is vulnerable to c
CVE-2025-36145 5.4 MEDIUM Multiple Vulnerabilities in watsonx.data
CVE-2025-14290 5.4 MEDIUM IBM webMethods Integration Sever is vulnerable to server-side request forgery
CVE-2025-36221 5.3 MEDIUM Vulnerabilities exists in IBM Cloud Pak for Data System (CPDS 1.0) - Cyclops.
CVE-2025-36220 4.3 MEDIUM Vulnerabilities exists in IBM Cloud Pak for Data System (CPDS 1.0) - Cyclops.
CVE-2026-9170 IBM HTTP Server is affected by multiple vulnerabilities

IV. Related Vulnerabilities

Same product: HTTP Server
Same vendor: IBM
Same weakness: CWE-476

V. Comments for CVE-2026-8850

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