Suprema BioStar 2 up to 2.9.11 ZIP File permission assignment

Summaryinfo

A vulnerability classified as problematic has been found in Suprema BioStar 2 up to 2.9.11. This vulnerability affects unknown code of the component ZIP File Handler. The manipulation leads to permission assignment. This vulnerability is referenced as CVE-2026-9508. Remote exploitation of the attack is possible. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Suprema BioStar 2 up to 2.9.11 and classified as problematic. This issue affects some unknown processing of the component ZIP File Handler. The manipulation with an unknown input leads to a permission assignment vulnerability. Using CWE to declare the problem leads to CWE-732. The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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.

The weakness was published by Jordi Garcia Ribera. The advisory is shared at incibe.es. The identification of this vulnerability is CVE-2026-9508 since 05/25/2026. The exploitation is known to be easy. The attack may be initiated remotely. The exploitation requires an enhanced level of successful authentication. Neither technical details nor an exploit are publicly available.

Upgrading to version 2.9.12 eliminates this vulnerability.

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Productinfo

Vendor

• Suprema

Name

• BioStar 2

Version

• 2.9.0
• 2.9.1
• 2.9.2
• 2.9.3
• 2.9.4
• 2.9.5
• 2.9.6
• 2.9.7
• 2.9.8
• 2.9.9
• 2.9.10
• 2.9.11

CPE 2.3info

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CPE 2.2info

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Entryinfo

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