CVE-2026-9508: Incorrect Permission Assignment for Critical Resource vulnerability in Suprema's BioStar
Incorrect permission settings on a critical resource in Suprema BioStar 2 (versions 2.9.3 through 2.9.11) that allow backup files to be publicly exposed when the administrator configures their path within the NGINX webroot. This vulnerability allows an attacker with network access to directly download backup ZIP files via ‘http(s)://[server]/download/…’ without requiring authentication. This exposes highly sensitive information that can lead to server impersonation, unauthorized access to databases, and lateral movement.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Compensating control
Restrict network access to the Suprema BioStar NGINX webroot so attackers cannot reach unauthenticated backup downloads at paths like ‘http(s)://[server]/download/…’.
Event History
Frequently Asked Questions
What is the severity of CVE-2026-9508?
The severity of CVE-2026-9508 is classified as critical with a CVSS score of 10.
How do I fix CVE-2026-9508?
To fix CVE-2026-9508, update to the latest available version of Suprema BioStar 2.
What type of vulnerability is CVE-2026-9508?
CVE-2026-9508 is an Incorrect Permission Assignment for Critical Resource vulnerability.
Which versions of Suprema BioStar are affected by CVE-2026-9508?
CVE-2026-9508 affects Suprema BioStar 2 versions 2.9.3 through 2.9.11.
What can an attacker do with CVE-2026-9508?
An attacker can exploit CVE-2026-9508 to access backup files that are publicly exposed due to incorrect permission settings.