ubuntu-cve-2026-42167
Vulnerability from osv_ubuntu
Published
2026-04-28 23:16
Modified
2026-05-20 15:27
Summary
Details
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).
Severity
8.1 (High)
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "proftpd-basic",
"binary_version": "1.3.5a-1ubuntu0.1"
},
{
"binary_name": "proftpd-mod-geoip",
"binary_version": "1.3.5a-1ubuntu0.1"
},
{
"binary_name": "proftpd-mod-ldap",
"binary_version": "1.3.5a-1ubuntu0.1"
},
{
"binary_name": "proftpd-mod-mysql",
"binary_version": "1.3.5a-1ubuntu0.1"
},
{
"binary_name": "proftpd-mod-odbc",
"binary_version": "1.3.5a-1ubuntu0.1"
},
{
"binary_name": "proftpd-mod-pgsql",
"binary_version": "1.3.5a-1ubuntu0.1"
},
{
"binary_name": "proftpd-mod-sqlite",
"binary_version": "1.3.5a-1ubuntu0.1"
}
]
},
"package": {
"ecosystem": "Ubuntu:16.04:LTS",
"name": "proftpd-dfsg",
"purl": "pkg:deb/ubuntu/proftpd-dfsg@1.3.5a-1ubuntu0.1?arch=source\u0026distro=xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.3.5-2",
"1.3.5a-1",
"1.3.5a-1build1",
"1.3.5a-1ubuntu0.1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "proftpd-basic",
"binary_version": "1.3.5e-1build1"
},
{
"binary_name": "proftpd-mod-geoip",
"binary_version": "1.3.5e-1build1"
},
{
"binary_name": "proftpd-mod-ldap",
"binary_version": "1.3.5e-1build1"
},
{
"binary_name": "proftpd-mod-mysql",
"binary_version": "1.3.5e-1build1"
},
{
"binary_name": "proftpd-mod-odbc",
"binary_version": "1.3.5e-1build1"
},
{
"binary_name": "proftpd-mod-pgsql",
"binary_version": "1.3.5e-1build1"
},
{
"binary_name": "proftpd-mod-sqlite",
"binary_version": "1.3.5e-1build1"
}
]
},
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "proftpd-dfsg",
"purl": "pkg:deb/ubuntu/proftpd-dfsg@1.3.5e-1build1?arch=source\u0026distro=bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.3.5d-1",
"1.3.5e-1build1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "proftpd-basic",
"binary_version": "1.3.6c-2ubuntu0.1"
},
{
"binary_name": "proftpd-mod-geoip",
"binary_version": "1.3.6c-2ubuntu0.1"
},
{
"binary_name": "proftpd-mod-ldap",
"binary_version": "1.3.6c-2ubuntu0.1"
},
{
"binary_name": "proftpd-mod-mysql",
"binary_version": "1.3.6c-2ubuntu0.1"
},
{
"binary_name": "proftpd-mod-odbc",
"binary_version": "1.3.6c-2ubuntu0.1"
},
{
"binary_name": "proftpd-mod-pgsql",
"binary_version": "1.3.6c-2ubuntu0.1"
},
{
"binary_name": "proftpd-mod-snmp",
"binary_version": "1.3.6c-2ubuntu0.1"
},
{
"binary_name": "proftpd-mod-sqlite",
"binary_version": "1.3.6c-2ubuntu0.1"
}
]
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "proftpd-dfsg",
"purl": "pkg:deb/ubuntu/proftpd-dfsg@1.3.6c-2ubuntu0.1?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.3.6-6build2",
"1.3.6c-1",
"1.3.6c-2",
"1.3.6c-2ubuntu0.1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "proftpd-basic",
"binary_version": "1.3.7c+dfsg-1ubuntu0.1"
},
{
"binary_name": "proftpd-core",
"binary_version": "1.3.7c+dfsg-1ubuntu0.1"
},
{
"binary_name": "proftpd-mod-crypto",
"binary_version": "1.3.7c+dfsg-1ubuntu0.1"
},
{
"binary_name": "proftpd-mod-geoip",
"binary_version": "1.3.7c+dfsg-1ubuntu0.1"
},
{
"binary_name": "proftpd-mod-ldap",
"binary_version": "1.3.7c+dfsg-1ubuntu0.1"
},
{
"binary_name": "proftpd-mod-mysql",
"binary_version": "1.3.7c+dfsg-1ubuntu0.1"
},
{
"binary_name": "proftpd-mod-odbc",
"binary_version": "1.3.7c+dfsg-1ubuntu0.1"
},
{
"binary_name": "proftpd-mod-pgsql",
"binary_version": "1.3.7c+dfsg-1ubuntu0.1"
},
{
"binary_name": "proftpd-mod-snmp",
"binary_version": "1.3.7c+dfsg-1ubuntu0.1"
},
{
"binary_name": "proftpd-mod-sqlite",
"binary_version": "1.3.7c+dfsg-1ubuntu0.1"
},
{
"binary_name": "proftpd-mod-wrap",
"binary_version": "1.3.7c+dfsg-1ubuntu0.1"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "proftpd-dfsg",
"purl": "pkg:deb/ubuntu/proftpd-dfsg@1.3.7c+dfsg-1ubuntu0.1?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.3.7b+dfsg-1",
"1.3.7c+dfsg-1build1",
"1.3.7c+dfsg-1ubuntu0.1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "proftpd-core",
"binary_version": "1.3.8.b+dfsg-1ubuntu0.1"
},
{
"binary_name": "proftpd-mod-crypto",
"binary_version": "1.3.8.b+dfsg-1ubuntu0.1"
},
{
"binary_name": "proftpd-mod-geoip",
"binary_version": "1.3.8.b+dfsg-1ubuntu0.1"
},
{
"binary_name": "proftpd-mod-ldap",
"binary_version": "1.3.8.b+dfsg-1ubuntu0.1"
},
{
"binary_name": "proftpd-mod-mysql",
"binary_version": "1.3.8.b+dfsg-1ubuntu0.1"
},
{
"binary_name": "proftpd-mod-odbc",
"binary_version": "1.3.8.b+dfsg-1ubuntu0.1"
},
{
"binary_name": "proftpd-mod-pgsql",
"binary_version": "1.3.8.b+dfsg-1ubuntu0.1"
},
{
"binary_name": "proftpd-mod-snmp",
"binary_version": "1.3.8.b+dfsg-1ubuntu0.1"
},
{
"binary_name": "proftpd-mod-sqlite",
"binary_version": "1.3.8.b+dfsg-1ubuntu0.1"
},
{
"binary_name": "proftpd-mod-wrap",
"binary_version": "1.3.8.b+dfsg-1ubuntu0.1"
}
]
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "proftpd-dfsg",
"purl": "pkg:deb/ubuntu/proftpd-dfsg@1.3.8.b+dfsg-1ubuntu0.1?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.3.8+dfsg-8",
"1.3.8.a+dfsg-1",
"1.3.8.b+dfsg-1",
"1.3.8.b+dfsg-1build1",
"1.3.8.b+dfsg-1build2",
"1.3.8.b+dfsg-1build3",
"1.3.8.b+dfsg-1ubuntu0.1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "proftpd-core",
"binary_version": "1.3.9~dfsg-3"
},
{
"binary_name": "proftpd-mod-crypto",
"binary_version": "1.3.9~dfsg-3"
},
{
"binary_name": "proftpd-mod-geoip",
"binary_version": "1.3.9~dfsg-3"
},
{
"binary_name": "proftpd-mod-ldap",
"binary_version": "1.3.9~dfsg-3"
},
{
"binary_name": "proftpd-mod-mysql",
"binary_version": "1.3.9~dfsg-3"
},
{
"binary_name": "proftpd-mod-odbc",
"binary_version": "1.3.9~dfsg-3"
},
{
"binary_name": "proftpd-mod-pgsql",
"binary_version": "1.3.9~dfsg-3"
},
{
"binary_name": "proftpd-mod-snmp",
"binary_version": "1.3.9~dfsg-3"
},
{
"binary_name": "proftpd-mod-sqlite",
"binary_version": "1.3.9~dfsg-3"
},
{
"binary_name": "proftpd-mod-wrap",
"binary_version": "1.3.9~dfsg-3"
}
]
},
"package": {
"ecosystem": "Ubuntu:25.10",
"name": "proftpd-dfsg",
"purl": "pkg:deb/ubuntu/proftpd-dfsg@1.3.9~dfsg-3?arch=source\u0026distro=questing"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.3.8.c+dfsg-2",
"1.3.8.c+dfsg-4",
"1.3.9~dfsg-3"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "proftpd-core",
"binary_version": "1.3.9~dfsg-4"
},
{
"binary_name": "proftpd-mod-crypto",
"binary_version": "1.3.9~dfsg-4"
},
{
"binary_name": "proftpd-mod-geoip",
"binary_version": "1.3.9~dfsg-4"
},
{
"binary_name": "proftpd-mod-ldap",
"binary_version": "1.3.9~dfsg-4"
},
{
"binary_name": "proftpd-mod-mysql",
"binary_version": "1.3.9~dfsg-4"
},
{
"binary_name": "proftpd-mod-odbc",
"binary_version": "1.3.9~dfsg-4"
},
{
"binary_name": "proftpd-mod-pgsql",
"binary_version": "1.3.9~dfsg-4"
},
{
"binary_name": "proftpd-mod-snmp",
"binary_version": "1.3.9~dfsg-4"
},
{
"binary_name": "proftpd-mod-sqlite",
"binary_version": "1.3.9~dfsg-4"
},
{
"binary_name": "proftpd-mod-wrap",
"binary_version": "1.3.9~dfsg-4"
}
]
},
"package": {
"ecosystem": "Ubuntu:26.04:LTS",
"name": "proftpd-dfsg",
"purl": "pkg:deb/ubuntu/proftpd-dfsg@1.3.9~dfsg-4?arch=source\u0026distro=resolute"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.3.9~dfsg-3",
"1.3.9~dfsg-4"
]
}
],
"aliases": [],
"details": "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).",
"id": "UBUNTU-CVE-2026-42167",
"modified": "2026-05-20T15:27:27Z",
"published": "2026-04-28T23:16:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-42167"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-42167"
},
{
"type": "REPORT",
"url": "https://github.com/proftpd/proftpd/issues/2052"
}
],
"related": [],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2026-42167"
]
}
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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