IBMCVE-2026-19645
IBM MQ Agent: resource exhaustion
Medium6.5CVE-2026-19645 · Published Sep 4, 2026 · updated Sep 10, 2026
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.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| MQ Agent Product | <= CD: v1.0.0, v1.0.1, v2.0.0, v2.0.1 | No fix yet |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-400
More IBM advisories
All IBM| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| Sep 4 | IBM i: improper authorization | High8.1 | No fix yet |
| Sep 4 | IBM i: improper authentication | High8.1 | No fix yet |
| Sep 4 | IBM i: integer overflow | Medium6.3 | No fix yet |
| Sep 4 | IBM ContextForge MCP Gateway: privilege escalation | High8.8 | No fix yet |
| Sep 4 | IBM ContextForge MCP Gateway - Translate utility: information disclosure | High7.4 | No fix yet |
| Sep 4 | IBM Langflow OSS: path traversal | Medium5.4 | No fix yet |