Description
mod_sql in ProFTPD before 1.3.9a allows remote attackers to execute arbitrary code via a username, in scenarios where there is logging of USER requests with an expansion such as %U, and the SQL backend allows commands (e.g., COPY TO PROGRAM).
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
ProFTPD ProFTPD
Default version status: unaffected
1.3.7b to < 1.3.9aaffected
References
- http://www.proftpd.org/docs/RELEASE_NOTES-1.3.10rc1 ↗
- https://github.com/proftpd/proftpd/issues/2052 ↗
- https://zeropath.com/blog/proftpd-cve-2026-42167-auth-bypass-privesc-rce ↗
- https://github.com/ZeroPathAI/proftpd-CVE-2026-42167-poc ↗
- https://www.openwall.com/lists/oss-security/2026/05/01/4 ↗
- http://www.openwall.com/lists/oss-security/2026/05/01/4 ↗
- http://www.openwall.com/lists/oss-security/2026/05/01/13 ↗