---
id: "CVE-2026-18195"
page: "https://infrastack.ai/live/CVE-2026-18195"
kind: "vulnerability"
aliases: ["CVE-2026-18195"]
title: "IBM App Connect Enterprise: error messages allow remote content spoofing"
severity: "medium"
cvss: 4.2
epss: null
exploited: false
status: "open"
category: "vendor"
products: []
ecosystems: []
tags: ["enterprise", "ibm-app-connect-enterprise", "integration", "vendor"]
not_affected_if: ["version-outside-range"]
published_at: "2026-11-08T18:17:03+00:00"
first_seen_at: "2026-11-08T18:22:22+00:00"
updated_at: "2026-11-08T18:23:05+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-18195", "first_seen_at": "2026-11-08T18:22:22+00:00"}]
exploit_sources: []
---

# IBM App Connect Enterprise: error messages allow remote content spoofing

Link for people: https://infrastack.ai/live/CVE-2026-18195 (this .md is for agents)

IBM App Connect Enterprise versions 13.0.1.0 through 13.0.8.2 and 12.0.1.0 through 12.0.12.30 do not encode error message output properly. A remote attacker can use this to spoof content shown to a user.

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

## How to check

- Check the installed IBM App Connect Enterprise version against the affected ranges (`13.0.1.0` to `13.0.8.2`, `12.0.1.0` to `12.0.12.30`)

## Timeline

- 2026-11-08T18:22:22+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-18195

## From the sources

IBM App Connect Enterprise 13.0.1.0 through 13.0.8.2, and 12.0.1.0 through 12.0.12.30 could allow a remote attacker to perform content spoofing due to improper output encoding of error messages.

---

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