---
id: "CVE-2026-3628"
kind: "vulnerability"
aliases: ["CVE-2026-3628"]
title: "IBM Concert: schema suggestions leak information to unauthorized users"
severity: "medium"
cvss: 5.3
epss: null
exploited: false
status: "open"
category: "vendor"
products: []
ecosystems: []
tags: ["ibm-concert", "self-hosted", "vendor"]
not_affected_if: ["fixed-version", "not-ibm-concert"]
published_at: "2026-10-19T18:17:07+00:00"
first_seen_at: "2026-10-23T21:57:18+00:00"
updated_at: "2026-10-25T04:24:58+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-3628", "first_seen_at": "2026-10-23T21:57:18+00:00"}]
---

# IBM Concert: schema suggestions leak information to unauthorized users

IBM Concert versions 1.0 through 3.0.0 expose schema suggestions in a way that discloses information. An attacker who can reach the product can read data the vendor did not intend to show.

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

## How to check

- Check the installed IBM Concert version against the affected range `1.0` through `3.0.0`.
- unknown

## Fix

- Move IBM Concert to a version newer than `3.0.0`, as listed in the IBM advisory.
- unknown

## Timeline

- 2026-10-23T21:57:18+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-3628

## From the sources

IBM Concert 1.0 through 3.0.0 allows information disclosure through exposure of schema suggestions.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_