CVE-2025-59518 Command injection in LemonLDAP::NG
Administrators can execute arbitrary OS commands on the server via the Safe jail due to improper localization of underscores during rule evaluation.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-59518?
CVE-2025-59518 is a high-severity command injection vulnerability in lemonldap-ng LemonLDAP::NG, published on 17 Sep 2025. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
In LemonLDAP::NG before 2.16.7 and 2.17 through 2.21 before 2.21.3, OS command injection can occur in the Safe jail. It does not Localize _ during rule evaluation. Thus, an administrator who can edit a rule evaluated by the Safe jail can execute commands on the server.
Weakness: CWE-78
Which versions are affected by CVE-2025-59518?
How do I fix CVE-2025-59518?
Upgrade to a fixed version.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2025-59518 being exploited?
There is no known exploitation of CVE-2025-59518 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2025-59518, GHSA-fxqv-qm7m-363x, UBUNTU-CVE-2025-59518.