CVE-2026-42167

NameCVE-2026-42167
Descriptionmod_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).
SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs1135119

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
proftpd-dfsg (PTS)bullseye1.3.7a+dfsg-12+deb11u2vulnerable
bullseye (security)1.3.7a+dfsg-12+deb11u5vulnerable
bookworm, bookworm (security)1.3.8+dfsg-4+deb12u4vulnerable
trixie1.3.8.c+dfsg-4+deb13u1vulnerable
forky, sid1.3.9~dfsg-5fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
proftpd-dfsgsource(unstable)1.3.9~dfsg-51135119

Notes

https://github.com/proftpd/proftpd/issues/2052
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