CVE-2026-110278

HIGH 7.4

IBM ContextForge MCP Gateway is affected by an information exposure vulnerability

CVSS Score

7.4

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-294
Vendor	ibm
Product	contextforge mcp gateway
Published	Nov 13, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

Affected Versions

IBM / ContextForge MCP Gateway

1.0.0 ≤ 1.1.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

ibm.com: https://www.ibm.com/support/pages/node/7296489

Credits

This vulnerability was reported to IBM by Wolfgang Kriesel.