CVE-2026-18484

IBM ContextForge MCP Gateway is affected by a denial-of-service via tool name collision through slug normalization

Published Nov 8, 2026 CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Description
IBM ContextForge MCP Gateway 1.0.0 through 1.0.11 could allow a remote authenticated attacker to cause a denial of service due to improper slug normalization causing tool name collisions.

Remediation

Vendor Solution

IBM strongly recommends addressing the vulnerability now. Product(s)Version(s) number and/or range Remediation/Fix/InstructionsIBM ContextForge MCP Gateway 1.0.0 - v1.0.11Upgrade to v1.1.0. See [ v1.1.0 release notes https://github.com/IBM/mcp-context-forge/releases/tag/v1.1.0 ]


Vendor Workaround

If an immediate upgrade is not possible, an administrator can mitigate an active collision by renaming or removing one of the two conflicting gateway registrations, which restores invocability of the affected tool. There is no configuration setting that prevents the collision from being created prior to the v1.1.0 fix. IBM strongly recommends upgrading to v1.1.0.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Ibm contextforge
CPEs cpe:2.3:a:ibm:contextforge:*:*:*:*:*:python:*:*
Vendors & Products Ibm contextforge
Type Values Removed Values Added
Description IBM ContextForge MCP Gateway 1.0.0 through 1.0.11 could allow a remote authenticated attacker to cause a denial of service due to improper slug normalization causing tool name collisions.
Title IBM ContextForge MCP Gateway is affected by a denial-of-service via tool name collision through slug normalization
First Time appeared Ibm
Ibm contextforge Mcp Gateway
Weaknesses CWE-706
CPEs cpe:2.3:a:ibm:contextforge_mcp_gateway:1.0.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:contextforge_mcp_gateway:1.0.11:*:*:*:*:*:*:*
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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
ibm
Published
Updated
Nov 9, 2026, 8:27 PM
Reserved
Jul 31, 2026, 1:22 PM
Status
Analyzed
Published
Nov 8, 2026, 6:17 PM
Modified
Nov 10, 2026, 3:53 PM