ZDI-CAN-29251: ZDI-26-447: Heimdall Data Database Proxy generateFileContent CRLF Injection Remote Code Execution Vulnerability

Published Jul 23, 2026
·
Updated

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Heimdall Data Database Proxy. Authentication is required to exploit this vulnerability. The specific flaw exists within the generateFileContent function. The issue results from the lack of proper neutralization of CRLF sequences. An attacker can leverage this vulnerability to execute code in the context of root.

Other sources

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Heimdall Data Database Proxy. Authentication is required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 7.2. The following CVEs are assigned: CVE-2026-12357.

— ZDI

Affected Software

2 affected components
Heimdall Data Database Proxy
Heimdall Data Database Proxy

Event History

Jul 23, 2026
Advisory Published
via ZDI·12:00 AM
Data Sourced
via ZDI·12:00 AM
DescriptionSeverityAffected Software
Advisory Published
via ZDI·05:00 AM

Frequently Asked Questions

1

What level of access does an attacker need?

An attacker needs authenticated access to the affected Heimdall Data Database Proxy installation and must be able to reach it remotely.

2

What is the impact if exploitation succeeds?

Successful exploitation can result in arbitrary code execution with root privileges, affecting confidentiality, integrity, and availability.

Contact

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