CVE-2026-110278
IBM ContextForge MCP Gateway is affected by an information exposure vulnerability
IBM ContextForge MCP Gateway 1.0.0 through 1.1.0 could allow an attacker to replay identity propagation claims signatures or expose sensitive user identity information to third-party MCP servers due to static signature payloads and missing per-gateway configuration checks during tool invocation.
Fixes and workarounds
Fix
IBM strongly recommends addressing the vulnerability now. Product(s)Version(s) number and/or range Remediation/Fix/InstructionsIBM ContextForge MCP Gateway v1.0.0-v1.1.0Upgrade to v1.1.1 immediately [ Release notes https://github.com/IBM/mcp-context-forge/releases/tag/v1.1.1 ]
Source: CNA: ibmWorkaround
IBM strongly recommends upgrading to the fixed version. If you cannot update disable identity propagation globally (set `IDENTITY_PROPAGATION_ENABLED=false`) so that no upstream MCP server receives user identity information, and restrict access to the gateway to trusted users.
Source: CNA: ibmFix
The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.
Source: CNA: ibmAffected products and versions
| Product | Versions | Authority |
|---|---|---|
| ContextForge MCP Gateway IBM |
≥ 1.0.0; ≤ 1.1.0 (affected, semver) | CNA: ibm |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 3.1 / 7.4 high |
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N | CNA: ibm |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://www.ibm.com/support/pages/node/7296489CNA: ibm · vendor-advisory, patch
For agents and automation
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