Authenticated service interruption via unbounded LLM requests
Published Sep 4, 2026 · Updated Sep 4, 2026
Resource exhaustion in IBM MQ Agent 1.0.0, 1.0.1, 2.0.0, and 2.0.1 allows remote authenticated users to interrupt the AI Agent service. The AI Agent request path admits arbitrarily large or computationally expensive requests without an effective resource bound, holding LLM workers for seconds to more than ten minutes. A valid session cookie and concurrent requests are required to exhaust the worker pool; the reported consequence is degraded performance or complete AI Agent unavailability.
Summary
What happened
Resource exhaustion in IBM MQ Agent 1.0.0, 1.0.1, 2.0.0, and 2.0.1 allows remote authenticated users to interrupt the AI Agent service. The AI Agent request path admits arbitrarily large or computationally expensive requests without an effective resource bound, holding LLM workers for seconds to more than ten minutes. A valid session cookie and concurrent requests are required to exhaust the worker pool; the reported consequence is degraded performance or complete AI Agent unavailability.
The record
- CVE
- CVE-2026-19645
- Published
- Sep 4, 2026
- Updated
- Sep 4, 2026
- Vendor
- IBM
- Product
- IBM MQ Agent
- Classifications
- CWE-400, T1499.003
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Sep 4, 2026CVE publishedPublication date reported by the CVE source.
- Sep 4, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=CD: v1.0.0, v1.0.1, v2.0.0, v2.0.1
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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