Privilege Escalation Vulnerability in IBM ContextForge MCP Gateway
CVE-2026-18486

8.8HIGH

Key Information:

Vendor

IBM
Status
Contextforge Mcp Gateway
Vendor
CVE Published:
4 September 2026

What is CVE-2026-18486?

The IBM ContextForge MCP Gateway version 1.0.7 and earlier are susceptible to a significant vulnerability that allows a remote authenticated attacker to gain access to sensitive credentials. This could lead to unauthorized privilege escalation due to improper validation of jq filters, potentially compromising system integrity. Addressing this issue is crucial for maintaining security practices and protecting sensitive information.

Affected Version(s)

ContextForge MCP Gateway <= v1.0.7

References

https://www.ibm.com/support/pages/node/7286052
vendor-advisorypatch

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.