CVE-2026-12357 Heimdall Data Database Proxy generateFileContent CRLF Injection Remote Code Execution Vulnerability
Authenticated attackers can execute arbitrary code as root via CRLF injection in the generateFileContent function of Heimdall Data Database Proxy.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-12357?
CVE-2026-12357 is a high-severity vulnerability in Heimdall Data Database Proxy, published on 29 Jul 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
Heimdall Data Database Proxy generateFileContent CRLF Injection Remote Code Execution Vulnerability. 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. Was ZDI-CAN-29251.
Weakness: CWE-93
Which versions are affected by CVE-2026-12357?
How do I fix CVE-2026-12357?
No fix has been published for CVE-2026-12357 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-12357 being exploited?
There is no known exploitation of CVE-2026-12357 in the wild and no public exploit code.
Sources
Also known as GHSA-c2fc-3q38-9pf4.