Log in Start free

Vulnerability · Published May 5, 2026 · Assigned by mitre

CVE-2026-44331

High 8.1

In plain English

A high-severity SQL injection in ProFTPD from ProFTPD. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 40% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)8.1High
Exploit odds (30 days)0.5%top 60.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Alpine:v3.22proftpd1.3.9b-r0ALPINE-CVE-2026-44331
Alpine:v3.23proftpd1.3.9b-r0ALPINE-CVE-2026-44331
Alpine:v3.24proftpd1.3.9b-r0ALPINE-CVE-2026-44331
Debian:12proftpd-dfsgno fix listedDEBIAN-CVE-2026-44331
Debian:13proftpd-dfsg1.3.8.c+dfsg-4+deb13u3DEBIAN-CVE-2026-44331
Debian:14proftpd-dfsg1.3.9a~dfsg-1DEBIAN-CVE-2026-44331
Ubuntu:22.04:LTSproftpd-dfsgno fix listedUBUNTU-CVE-2026-44331
Ubuntu:24.04:LTSproftpd-dfsgno fix listedUBUNTU-CVE-2026-44331
Ubuntu:25.10proftpd-dfsgno fix listedUBUNTU-CVE-2026-44331
Ubuntu:26.04:LTSproftpd-dfsgno fix listedUBUNTU-CVE-2026-44331
Ubuntu:26.10proftpd-dfsgno fix listedUBUNTU-CVE-2026-44331

Affected products (as reported)

VendorProductVersions
ProFTPD ProFTPD 0 – through 1.3.9a

Weakness: CWE-89 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

References