---
id: "CVE-2026-112250"
kind: "vulnerability"
aliases: ["CVE-2026-112250"]
title: "BRAIN2 installer writes service account password in cleartext to log"
severity: "medium"
cvss: 4.4
epss: null
exploited: false
status: "open"
category: "other"
products: []
ecosystems: []
tags: ["brain2", "other", "sql-server", "windows"]
not_affected_if: ["default-config", "non-integrated-security"]
published_at: "2026-10-26T10:16:51+00:00"
first_seen_at: "2026-10-26T10:29:17+00:00"
updated_at: "2026-10-26T10:31:02+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-112250", "first_seen_at": "2026-10-26T10:29:17+00:00"}]
---

# BRAIN2 installer writes service account password in cleartext to log

Under specific installation conditions, BRAIN2 up to and including 3.09 writes the Windows service account password in cleartext to a setup log file. An attacker who can read the installing administrator's temporary directory can recover the BRAIN2 MainService account credentials.

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

## How to check

- Check whether BRAIN2 was installed with Microsoft SQL Server Integrated Security and a Windows account set for the MainService during the installation wizard.
- Look for setup log files in the temporary directory of the Windows administrator who ran the installation and search them for the service account password.
- Confirm the installed BRAIN2 version is `3.09` or earlier.

## Timeline

- 2026-10-26T10:29:17+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-112250

## From the sources

A vulnerability has been identified in
BRAIN2 versions up to and including version 3.09. Under specific installation
conditions, the password of a Windows service account may be written in
cleartext to a setup log file. The issue occurs when Microsoft SQL Server
access is configured using Integrated Security and the Windows account intended
to run the BRAIN2 MainService is specified during execution of the BRAIN2
installation wizard. The setup log file is stored in the
temporary directory of the Windows administrator performing the installation.
This directory is not accessible to standard Windows users and can generally
only be accessed by users with administrative privileges. Successful exploitation could result in the
disclosure of credentials belonging to the configured BRAIN2 service account.

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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_