High severity · published Sep 14, 2026
CVE-2026-31278
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…
7.7
CVSS
0.3%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 20% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
B2
BioStar 2 · supremainc
before 2.9.12 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-31278
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-31278
github.com
https://github.com/mda1r/biostar2-ad-credential-exposure
www.supremainc.com
https://www.supremainc.com
github.com
https://github.com/mda1r/CVE-2026-31278
More from BioStar 2
8.8
CVE-2023-33366
A SQL injection vulnerability exists in Suprema BioStar 2 before 2.9.1, which allows authenticated users to inject arbitrary SQL directives into an SQL statement and execute…
8.8
CVE-2023-33364
An OS Command injection vulnerability exists in Suprema BioStar 2 before V2.9.1, which allows authenticated users to execute arbitrary OS commands on the BioStar 2 server
8.8
CVE-2023-31923
Suprema BioStar 2 before 2022 Q4, v2.9.1 has Insecure Permissions
8.8
CVE-2022-38351
A vulnerability in Suprema BioStar (aka Bio Star) 2 v2.8.16 allows attackers to escalate privileges to System Administrator via a crafted PUT request to the update profile page
7.5
CVE-2023-33365
A path traversal vulnerability exists in Suprema BioStar 2 before 2.9.1, which allows unauthenticated attackers to fetch arbitrary files from the server's web server