---
id: "CVE-2026-110199"
page: "https://infrastack.ai/live/CVE-2026-110199"
kind: "vulnerability"
aliases: ["CVE-2026-110199"]
title: "IBM ContextForge MCP Gateway: DOM-based XSS in admin dashboard via crafted link"
severity: "medium"
cvss: 4.8
epss: null
exploited: false
status: "open"
category: "ai-tooling"
products: [{"name": "IBM ContextForge MCP Gateway", "fixed": ["1.1.0"], "affected": ">= 1.0.0, <= 1.0.11", "ecosystem": "vendor"}]
ecosystems: []
tags: ["ai-tooling", "ibm-contextforge", "mcp", "self-hosted"]
not_affected_if: ["version-outside-range"]
published_at: "2026-11-13T22:17:20+00:00"
first_seen_at: "2026-11-13T22:33:33+00:00"
updated_at: "2026-11-13T22:35:21+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-110199", "first_seen_at": "2026-11-13T22:33:33+00:00"}, {"source": "analyst", "url": "https://www.ibm.com/support/pages/node/7296694", "first_seen_at": "2026-11-13T22:35:21+00:00", "cites": ["https://www.ibm.com/support/pages/node/7296694"]}]
exploit_sources: []
---

# IBM ContextForge MCP Gateway: DOM-based XSS in admin dashboard via crafted link

Link for people: https://infrastack.ai/live/CVE-2026-110199 (this .md is for agents)

The ContextForge admin dashboard puts status and error notifications from URL values into the page after a client-side HTML sanitizer, which can be bypassed (mutation XSS). An attacker who gets an administrator to open a crafted link can run JavaScript in that admin's authenticated session, with possible credential disclosure. IBM rates it CVSS 4.8. Fixed in v1.1.0; IBM lists no workaround.

_Summary, check and fix written by a model from the sources; labelled as such._

## Affected

- vendor:IBM ContextForge MCP Gateway affected >= 1.0.0, <= 1.0.11 fixed 1.1.0

## How to check

Check the installed ContextForge MCP Gateway version. Versions v1.0.0 through v1.0.11 are affected; v1.1.0 is fixed. Only deployments with the admin dashboard reachable by administrators matter.

## Fix

Upgrade IBM ContextForge MCP Gateway to v1.1.0. IBM lists no workarounds.

## Timeline

- 2026-11-13T22:33:33+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-110199
- 2026-11-13T22:35:21+00:00 analyst https://www.ibm.com/support/pages/node/7296694 — IBM bulletin read: affected v1.0.0-v1.0.11, fixed v1.1.0, no workaround. Bulletin says DOM-based mXSS in admin dashboard via URL values; needs admin to open crafted link (CVSS 4.8, UI:R). No exploitation or PoC checked beyond bulletin.

## Documents

- [advisory] IBM Security Bulletin: ContextForge MCP Gateway DOM-based XSS (CVE-2026-110199) https://www.ibm.com/support/pages/node/7296694

## From the sources

IBM ContextForge MCP Gateway 1.0.0 through 1.0.11 is vulnerable to cross-site scripting. This vulnerability allows a privileged user to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted session.

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