CVE-2026-19645: CWE-400 Uncontrolled Resource Consumption in IBM MQ Agent
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.
CVSS v3.1
Score 6.5medium
Affected software
IBM
MQ Agent
cpe:2.3:a:ibm:mq_agent:cd:*:*:*:*:*:*:*Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-400: Uncontrolled Resource Consumption) affects IBM MQ Agent CD versions 1.0.0, 1.0.1, 2.0.0, and 2.0.1. An authenticated user possessing a valid session cookie can send arbitrarily large or computationally expensive requests to the LLM agent workers. These requests cause the workers to be held for extended durations, from tens of seconds up to over ten minutes per request. When multiple such requests are sent concurrently, the agent worker pool is exhausted, leading to degraded performance or complete unavailability of the AI Agent feature for other IBM MQ Console users.
Potential Impact
The impact is denial of service on the AI Agent feature of IBM MQ Console due to exhaustion of agent worker resources. This results in degraded performance or complete unavailability of the AI Agent functionality. There is no confidentiality or integrity impact reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are provided in the available data. Until a patch is available, consider restricting access to authenticated users who can submit requests to the IBM MQ Agent or implementing rate limiting to reduce the risk of resource exhaustion.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-08-12T17:12:34.967Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a9ae5d3acd9273b49ce3b7b
Added to database: 09/04/2026, 15:37:55 UTC
Last enriched: 09/14/2026, 23:52:21 UTC
Last updated: 10/19/2026, 18:48:18 UTC
Views: 81
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