{"id":"CVE-2026-112250","kind":"vulnerability","aliases":["CVE-2026-112250"],"related":[],"title":"BRAIN2 installer writes service account password in cleartext to log","description":"A vulnerability has been identified in\nBRAIN2 versions up to and including version 3.09. Under specific installation\nconditions, the password of a Windows service account may be written in\ncleartext to a setup log file. The issue occurs when Microsoft SQL Server\naccess is configured using Integrated Security and the Windows account intended\nto run the BRAIN2 MainService is specified during execution of the BRAIN2\ninstallation wizard. The setup log file is stored in the\ntemporary directory of the Windows administrator performing the installation.\nThis directory is not accessible to standard Windows users and can generally\nonly be accessed by users with administrative privileges. Successful exploitation could result in the\ndisclosure of credentials belonging to the configured BRAIN2 service account.","summary":"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.","severity":"medium","cvss":4.4,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["brain2","other","sql-server","windows"],"not_affected_if":["default-config","non-integrated-security"],"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.\n- 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.\n- Confirm the installed BRAIN2 version is `3.09` or earlier.","fix":null,"status":"open","published_at":"2026-10-26T10:16:51+00:00","first_seen_at":"2026-10-26T10:29:17+00:00","triaged_at":"2026-10-26T10:31:02+00:00","updated_at":"2026-10-26T10:31:02+00:00","category":"other","confidence":0.6,"triage":{"at":"2026-10-26T10:31:02Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"local","title":"BRAIN2 installer writes service account password in cleartext to log","impact":"medium","summary":"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.","category":"other","nicknames":[],"who_cares":["brain2","windows","sql-server"],"confidence":0.6,"needs_auth":"yes","worst_case":"service account credentials readable from setup log file","analyst_note":"Confirm the fixed BRAIN2 version and vendor remediation steps; the NVD entry gives no fix or version beyond 3.09.","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.\n- 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.\n- Confirm the installed BRAIN2 version is `3.09` or earlier.","needs_analyst":true,"not_affected_if":["default-config","non-integrated-security"],"who_is_affected":"Sources describe exposure only for BRAIN2 installs up to and including 3.09 that use SQL Server Integrated Security and a Windows account for the MainService entered in the installer. The log sits in the installing administrator's temp directory, which standard users cannot read. Installs using other database authentication or no Windows service account are not described as affected.","user_interaction":"no","needs_special_setup":"yes","severity_if_unknown":"unknown"},"cost_usd":0.000635,"input_tokens":3451,"output_tokens":579,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-112250':13A,16A '-2026':12A,15A '3.09':32B,77C 'access':106C,152C,162C 'account':5A,37B,62B,88C,115C,183C 'administr':53B,144C,166C 'attack':47B 'belong':177C 'brain2':1A,17B,27B,60B,70C,120C,128C,181C 'cleartext':8A,40B,93C 'condit':26B,81C 'configur':108C,180C 'could':170C 'credenti':63B,176C 'cve':11A,14A 'directori':56B,140C,149C 'disclosur':174C 'execut':125C 'exploit':169C 'file':45B,98C,134C 'general':159C 'identifi':68C 'includ':31B,75C 'instal':2A,25B,52B,80C,129C,147C 'integr':110C 'intend':116C 'issu':100C 'log':10A,44B,97C,133C 'mainservic':61B,121C 'may':89C 'microsoft':103C 'occur':101C 'password':6A,38B,83C 'perform':145C 'privileg':167C 'read':50B 'recov':58B 'result':171C 'run':118C 'secur':111C 'server':21B,105C 'servic':4A,36B,87C,182C 'setup':43B,96C,132C 'specif':24B,79C 'specifi':123C 'sql':20B,104C 'sql-server':19B 'standard':154C 'store':136C 'success':168C 'temporari':55B,139C 'use':109C 'user':156C,164C 'version':71C,76C 'vulner':65C 'window':22B,35B,86C,114C,143C,155C 'wizard':130C 'write':3A,33B 'written':91C","nicknames":[],"mitigations":[],"who_affected":"Sources describe exposure only for BRAIN2 installs up to and including 3.09 that use SQL Server Integrated Security and a Windows account for the MainService entered in the installer. The log sits in the installing administrator's temp directory, which standard users cannot read. Installs using other database authentication or no Windows service account are not described as affected.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-26T10:16:51+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N","cvss_by":"0beee27a-7d8c-424f-8e46-ac453fa147e6","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-112250","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-112250","severity":null,"published_at":"2026-10-26T10:16:51+00:00","modified_at":"2026-10-26T10:16:51+00:00","first_seen_at":"2026-10-26T10:29:17+00:00","fetched_at":"2026-10-26T10:29:17+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}