CVE-2026-44331 SQL injection in ProFTPD
Remote attackers can inject SQL commands via crafted domain names in ProFTPD when reverse DNS is enabled, potentially compromising database integrity.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-44331?
CVE-2026-44331 is a high-severity SQL injection vulnerability in ProFTPD, published on 5 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In ProFTPD through 1.3.9a before 7666224, a SQL injection vulnerability in sqltab_fetch_clients_cb() in contrib/mod_wrap2_sql.c allows a remote attacker to inject arbitrary SQL commands via a crafted domain name that is accessed in a reverse DNS lookup. When "UseReverseDNS on" is enabled, the attacker-supplied hostname is passed unescaped into SQL queries. The character restrictions of DNS names may affect exploitability.
Weakness: CWE-89
Which versions are affected by CVE-2026-44331?
How do I fix CVE-2026-44331?
Apply the vendor's patch.
Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.
Is CVE-2026-44331 being exploited?
There is no known exploitation of CVE-2026-44331 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-44331, GHSA-jmg2-v72j-gmvc, OESA-2026-2265, OESA-2026-2267, OESA-2026-2268, UBUNTU-CVE-2026-44331.