What’s Vulnerable › Vulnerabilities

CVE-2026-11918: IBM ContextForge MCP Gateway is affected by security filter bypass via nested payload structures

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-15 · updated 2026-09-20
• Weakness: CWE-184

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.

Affected products

• IBM ContextForge MCP Gateway: through v1.0.4

References

• https://www.ibm.com/support/pages/node/7285720

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