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Medium 5.4Published Sep 15, 2026
CVE-2026-11918IBM ContextForge MCP Gateway is affected by security filter bypass via nested payload structures
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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
- 5.4 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
- Weakness (CWE)
- CWE-184
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- ibm
- NVD analysis
- Awaiting Analysis
- Record last updated
- Sep 20, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
IBM ContextForge MCP Gateway ibm:contextforge_mcp_gateway | through 1.0.4 | CNA record |
References
- https://www.ibm.com/support/pages/node/7285720vendor-advisory, patch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.