IBM ContextForge MCP Gateway 1.0.8 through 1.0.11, and v1.1.0 is vulnerable to denial of service due to an incomplete denylist in the jq filter guard module (CWE-184). An authenticated remote attacker can supply a crafted `jsonpath_filter` value containing `halt`, `halt_error`, or unbounded-loop built-ins that bypass the safety check, causing gateway worker process termination or sustained resource exhaustion.
Advisories

No advisories yet.

Fixes

Solution

IBM strongly recommends addressing the vulnerability now. Product(s)Version(s) number and/or range Remediation/Fix/InstructionsIBM ContextForge MCP Gatewayv1.1.1Install or upgrade to v1.1.1 [ v1.1.1 Release notes https://github.com/IBM/mcp-context-forge/releases/tag/v1.1.1 ]


Workaround

None. IBM strongly recommends upgrading to the fixed version.

History

Fri, 13 Nov 2026 22:00:00 +0000

Type Values Removed Values Added
Description IBM ContextForge MCP Gateway 1.0.8 through 1.0.11, and v1.1.0 is vulnerable to denial of service due to an incomplete denylist in the jq filter guard module (CWE-184). An authenticated remote attacker can supply a crafted `jsonpath_filter` value containing `halt`, `halt_error`, or unbounded-loop built-ins that bypass the safety check, causing gateway worker process termination or sustained resource exhaustion.
Title IBM ContextForge MCP Gateway is affected by a denial of service due to an incomplete list of disallowed jq inputs
First Time appeared Ibm
Ibm contextforge Mcp Gateway
Weaknesses CWE-184
CPEs cpe:2.3:a:ibm:contextforge_mcp_gateway:1.0.11:*:*:*:*:*:*:*
cpe:2.3:a:ibm:contextforge_mcp_gateway:1.0.8:*:*:*:*:*:*:*
Vendors & Products Ibm
Ibm contextforge Mcp Gateway
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: ibm

Published:

Updated: 2026-11-13T21:43:26.623Z

Reserved: 2026-10-13T17:24:47.069Z

Link: CVE-2026-110189

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-11-13T22:17:20.363

Modified: 2026-11-13T22:17:20.463

Link: CVE-2026-110189

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses