CVE-2026-45344 LinkAce: Setup database password newline injection enables pre-auth RCE on uninitialized instances
Remote attackers can achieve code execution on uninitialized LinkAce instances by injecting mail configuration variables into the database setup flow.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-45344?
CVE-2026-45344 is a high-severity code injection vulnerability in Kovah LinkAce, published on 28 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
LinkAce is a self-hosted archive to collect website links. Prior to 2.5.6, the setup database configuration flow on uninitialized LinkAce instances accepts attacker-controlled database credential fields and writes them back into .env without escaping. A remote attacker who can reach the setup endpoints and supply a database they control can inject mail configuration variables and achieve command execution when the application later sends mail. This vulnerability is fixed in 2.5.6.
Weakness: CWE-74
Which versions are affected by CVE-2026-45344?
How do I fix CVE-2026-45344?
No fix has been published for CVE-2026-45344 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-45344 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-45344 exists.
Sources
Also known as GHSA-37m5-936h-w455.