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).

According to the versions of the proftpd package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

    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).(CVE-2026-42167)

Tenable has extracted the preceding description block directly from the EulerOS proftpd security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The version of proftpd installed on the remote host is prior to 1.3.9b. It is, therefore, affected by a vulnerability as referenced in the SSA:2026-154-03 advisory.

    New proftpd packages are available for Slackware 15.0 and -current to fix a security issue.

Tenable has extracted the preceding description block directly from the proftpd security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Fedora 45 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-c8173d7dcd advisory.

    Automatic update for proftpd-1.3.9a-2.fc45.

    ##### **Changelog**

    ```
    * Mon May 11 2026 Paul Howarth <paul@city-fan.org> - 1.3.9a-2
    - Additional escaping for avoidance of SQL injection issues with %{note:...}       and %{env:...}; these are on top of the existing fix for CVE-2026-42167 in       1.3.9a
    - Fix for SQL Injection in mod_wrap2_sql via reverse DNS hostname       (CVE-2026-44331, rhbz#2466899, https://github.com/proftpd/proftpd/issues/2057)

    ```

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 43 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-bdb9342c72 advisory.

    Cumulative bug-fix release from upstream. Includes fix for a possible SQL-injection issue via `mod_sql`     (CVE-2026-42167). Note that `mod_sql` is not enabled by default.


Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Fedora 44 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-549ee32ea1 advisory.

    Cumulative bug-fix release from upstream. Includes fix for a possible SQL-injection issue via `mod_sql`     (CVE-2026-42167). Note that `mod_sql` is not enabled by default.


Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Fedora 42 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-739d341ab8 advisory.

    Cumulative bug-fix release from upstream. Includes fix for a possible SQL-injection issue via `mod_sql`     (CVE-2026-42167). Note that `mod_sql` is not enabled by default.


Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - 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). (CVE-2026-42167)

Note that Nessus relies on the presence of the package as reported by the vendor.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - 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). (CVE-2026-42167)

The version of proftpd installed on the remote host is prior to 1.3.9a. It is, therefore, affected by a vulnerability as referenced in the SSA:2026-118-01 advisory.

    New proftpd packages are available for Slackware 15.0 and -current to fix a security issue.

Tenable has extracted the preceding description block directly from the proftpd security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
326167	EulerOS 2.0 SP12 : proftpd (EulerOS-SA-2026-2614)	Nessus	Huawei Local Security Checks	high
326156	EulerOS 2.0 SP12 : proftpd (EulerOS-SA-2026-2554)	Nessus	Huawei Local Security Checks	high
319298	Slackware Linux 15.0 / current proftpd Vulnerability (SSA:2026-154-03)	Nessus	Slackware Local Security Checks	high
314304	Fedora 45 : proftpd (2026-c8173d7dcd)	Nessus	Fedora Local Security Checks	high
313413	Fedora 43 : proftpd (2026-bdb9342c72)	Nessus	Fedora Local Security Checks	high
313412	Fedora 44 : proftpd (2026-549ee32ea1)	Nessus	Fedora Local Security Checks	high
313411	Fedora 42 : proftpd (2026-739d341ab8)	Nessus	Fedora Local Security Checks	high
310830	Linux Distros Unpatched Vulnerability : CVE-2026-42167	Nessus	Misc.	high
440933	Alpine: multiple proftpd packages: security update to 1.3.9a-r0	Tenable Cloud Security	Alpine Linux Local Security Checks	high
440933	Alpine: multiple proftpd packages: security update to 1.3.9a-r0	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	high
310669	Slackware Linux 15.0 / current proftpd Vulnerability (SSA:2026-118-01)	Nessus	Slackware Local Security Checks	high

Detections

Analytics

CVE-2026-42167

high

Tenable Plugins

high

high

high

high

high

high

high

high

high

high

high