---
id: CVE-2026-31278
title: >-
  An issue in the /api/v2/setting/adserversetting endpoint of Suprema BioStar 2
  before 2.9.12 and and BioStar X before 1.0.2 allows attackers to obtain Active
  Directory service account credentials in cleartext by supplying a crafted GET
  re…
summary: >-
  An issue in the /api/v2/setting/adserversetting endpoint of Suprema BioStar 2
  before 2.9.12 and and BioStar X before 1.0.2 allows attackers to obtain Active
  Directory service account credentials in cleartext by supplying a crafted GET
  re…
severity: high
cvss: 7.7
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N'
cwe:
  - CWE-319
vendor: supremainc
product: BioStar 2
affected:
  - biostar_2 < 2.9.12
published: '2026-09-14'
updated: '2026-09-22'
sourceUpdated: '2026-09-22T20:00:03.713'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-31278'
references:
  - url: 'https://github.com/mda1r/biostar2-ad-credential-exposure'
    label: cve@mitre.org
  - url: 'https://www.supremainc.com'
    label: cve@mitre.org
  - url: 'https://github.com/mda1r/CVE-2026-31278'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - exploit-available
  - cve.org
epss: 0.00276
epssPercentile: 0.17876
exploits:
  github: 1
  githubRepos:
    - 'https://github.com/mda1r/CVE-2026-31278'
  checkedAt: '2026-09-26T09:05:41.732Z'
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-16T14:26:12.919730Z'
ingestedAt: '2026-09-14T15:23:07.467Z'
---

## Overview

An issue in the /api/v2/setting/adserversetting endpoint of Suprema BioStar 2 before 2.9.12 and and BioStar X before 1.0.2 allows attackers to obtain Active Directory service account credentials in cleartext by supplying a crafted GET request.

## Remediation

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