SQL Injection Affecting proftpd package, versions <1.3.9b-r0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published7 Jun 2026
- disclosed5 May 2026
Introduced: 5 May 2026
CVE-2026-44331 (opens in a new tab)How to fix?
Upgrade Alpine:3.22 proftpd to version 1.3.9b-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream proftpd package and not the proftpd package as distributed by Alpine.
See How to fix? for Alpine:3.22 relevant fixed versions and status.
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.