---
id: CVE-2026-6327
title: >-
  IBM Concert 1.0.0 through 3.0.0 could allow an unauthorized user to inject
  data into log messages due to improper neutralization of special elements when
  written to log files.
summary: >-
  IBM Concert 1.0.0 through 3.0.0 could allow an unauthorized user to inject
  data into log messages due to improper neutralization of special elements when
  written to log files.
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N'
cwe:
  - CWE-117
vendor: IBM
product: Concert
affected:
  - Concert >= 1.0.0 <= 3.0.0
published: '2026-09-23'
updated: '2026-09-23'
sourceUpdated: '2026-09-23T18:17:07.270'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-6327'
references:
  - url: 'https://www.ibm.com/support/pages/node/7288830'
    label: psirt@us.ibm.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-23T16:33:06.136763Z'
ingestedAt: '2026-09-23T16:27:22.657Z'
---

## Overview

IBM Concert 1.0.0 through 3.0.0 could allow an unauthorized user to inject data into log messages due to improper neutralization of special elements when written to log files.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.