CVE-2026-19645— Multiple vulnerabilities in IBM MQ Agent images
Quick assessment
Affected
IBM MQ Agent
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 MQ 智能体（Agent）版本：v1.0.0、v1.0.1、v2.0.0、v2.0.1 持有有效会话 Cookie 的认证用户可提交任意大或计算开销巨大的请求，导致 LLM 智能体工作进程被长时间占用——每个请求的占用时间从数十秒到超过十分钟不等。当多个此类请求并发发送时，智能体工作进程池将被耗尽，导致所有其他 IBM MQ 控制台用户在使用 AI 智能体功能时遭遇性能下降或完全不可用。
Possible ATT&CK Techniques 1 AI
T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2026-19645
Vulnerability Information
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Vulnerability Title
Multiple vulnerabilities in IBM MQ Agent images
Source: CVE Program / CVE List V5
Vulnerability Description
IBM MQ Agent CD: v1.0.0, v1.0.1, v2.0.0, v2.0.1 An authenticated user with a valid session cookie can submit arbitrarily large or computationallyexpensive requests that cause the LLM agent workers to be held for extended periods — rangingfrom tens of seconds to over ten minutes per request. When multiple such requests are sentconcurrently, the agent worker pool becomes exhausted, causing all other IBM MQ Console users toexperience degraded performance or complete unavailability of the AI Agent feature.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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
Affected Products
II. Public POCs for CVE-2026-19645
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2026-19645 (1)
Same Patch Batch · IBM · 2026-09-04 · 64 CVEs total
| CVE-2026-18658 | 9.8 CRITICAL | IBM Operational Decision Manager for Aug 2026 - Multiple CVEs addressed |
| CVE-2026-19274 | 9.6 CRITICAL | IBM Instana Observability is affected by multiple vulnerabilities within Instana Agent con |
| CVE-2026-19298 | 8.8 HIGH | Langflow is vulnerable to remote code execution due to authorization policy bypass in the |
| CVE-2026-18486 | 8.8 HIGH | IBM ContextForge MCP Gateway is affected by credential disclosure and privilege escalation |
| CVE-2026-19305 | 8.6 HIGH | Langflow is vulnerable to Server-Side Request Forgery due to missing or bypassable URL val |
| CVE-2026-77822 | 8.2 HIGH | IBM ContextForge MCP Gateway is affected by server-side request forgery (DNS rebinding) vi |
| CVE-2026-18221 | 8.1 HIGH | IBM i is Affected By Improper Authorization and Authentication Vulnerabilities in DDM / DR |
| CVE-2026-19303 | 8.1 HIGH | Langflow is vulnerable to arbitrary file write and arbitrary file deletion due to unvalida |
| CVE-2026-18175 | 8.1 HIGH | IBM i is Affected By Improper Authorization and Authentication Vulnerabilities in DDM / DR |
| CVE-2026-19306 | 7.7 HIGH | Langflow is vulnerable to arbitrary local file read due to path traversal in ChatInput, bu |
| CVE-2026-19283 | 7.7 HIGH | IBM Instana Observability is affected by multiple vulnerabilities within Instana Agent con |
| CVE-2026-19304 | 7.7 HIGH | Langflow is vulnerable to Server-Side Request Forgery due to missing or bypassable URL val |
| CVE-2026-18905 | 7.7 HIGH | IBM ContextForge MCP Gateway is affected by server-side request forgery via DNS TOCTOU at |
| CVE-2026-81832 | 7.7 HIGH | IBM App Connect Enterprise and IBM Integration Bus for z/OS Adapter nodes are vulnerable t |
| CVE-2026-19300 | 7.5 HIGH | Langflow is vulnerable to information disclosure due to cross-user MCP tool cache collisio |
| CVE-2026-18489 | 7.4 HIGH | IBM ContextForge Translate is affected by cross-client credential context confusion |
| CVE-2026-5522 | 6.7 MEDIUM | QRadar contains hard-coded credentials |
| CVE-2026-18887 | 6.5 MEDIUM | IBM i is Affected By Sensitive Information Exposure Vulnerability in PASE [] |
| CVE-2026-9186 | 6.5 MEDIUM | Langflow is vulnerable to stored cross-site scripting and IP spoofing due to unsanitized M |
| CVE-2026-17273 | 6.5 MEDIUM | IBM i is Affected By Multiple Vulnerabilities in Debug Server |
Showing top 20 of 64 CVEs. View all on vendor page → →
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V. Comments for CVE-2026-19645
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