CVE-2026-11918: CWE-184 Incomplete List of Disallowed Inputs in IBM ContextForge MCP Gateway
IBM ContextForge MCP Gateway <= v1.0.4 IBM mcp-context-forge could allow an authenticated user to bypass protection mechanisms due to incomplete recursive inspection of nested payload content.
AI Analysis
Technical Summary
IBM ContextForge MCP Gateway versions up to and including 1.0.4 contain a vulnerability (CWE-184) where the list of disallowed inputs is incomplete due to insufficient recursive inspection of nested payload content. This flaw allows an authenticated user to bypass certain protection mechanisms within the product. The CVSS 3.1 base score is 5.4, reflecting a medium severity with network attack vector, low attack complexity, and no user interaction required. The vulnerability affects confidentiality and integrity but does not impact availability.
Potential Impact
An authenticated user can bypass protection mechanisms, potentially leading to unauthorized access or modification of data within the IBM ContextForge MCP Gateway. The impact affects confidentiality and integrity but does not affect system availability. There are no known exploits in the wild at this time.
Mitigation Recommendations
No official patch or vendor advisory is provided in the input data. Patch status is not yet confirmed — check the IBM vendor advisory for current remediation guidance. Until a fix is available, limit authenticated user privileges and monitor for suspicious activity related to payload manipulation.
CVE-2026-11918: CWE-184 Incomplete List of Disallowed Inputs in IBM ContextForge MCP Gateway
Description
IBM ContextForge MCP Gateway <= v1.0.4 IBM mcp-context-forge could allow an authenticated user to bypass protection mechanisms due to incomplete recursive inspection of nested payload content.
CVSS v3.1
Score 5.4medium
Affected software
IBM
ContextForge MCP Gateway
cpe:2.3:a:ibm:contextforge_mcp_gateway:*:*:*:*:*:*:*:*Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
IBM ContextForge MCP Gateway versions up to and including 1.0.4 contain a vulnerability (CWE-184) where the list of disallowed inputs is incomplete due to insufficient recursive inspection of nested payload content. This flaw allows an authenticated user to bypass certain protection mechanisms within the product. The CVSS 3.1 base score is 5.4, reflecting a medium severity with network attack vector, low attack complexity, and no user interaction required. The vulnerability affects confidentiality and integrity but does not impact availability.
Potential Impact
An authenticated user can bypass protection mechanisms, potentially leading to unauthorized access or modification of data within the IBM ContextForge MCP Gateway. The impact affects confidentiality and integrity but does not affect system availability. There are no known exploits in the wild at this time.
Mitigation Recommendations
No official patch or vendor advisory is provided in the input data. Patch status is not yet confirmed — check the IBM vendor advisory for current remediation guidance. Until a fix is available, limit authenticated user privileges and monitor for suspicious activity related to payload manipulation.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-06-10T17:00:06.831Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6aa984ed55bf5e2cf52bbba1
Added to database: 09/15/2026, 17:48:29 UTC
Last enriched: 09/15/2026, 18:02:41 UTC
Last updated: 09/16/2026, 03:06:35 UTC
Views: 10
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