Vulnerability-Lookup

OESA-2026-2266 (CVE-2026-42167)

Vulnerability from osv_openeuler – Published: 2026-05-09 11:11 – Updated: 2026-08-06 11:11 – Source website

Summary

proftpd security update

Details

ProFTPD is an enhanced FTP server with a focus toward simplicity, security, and ease of configuration. It features a very Apache-like configuration syntax, and a highly customizable server infrastructure, including support for multiple 'virtual' FTP servers, anonymous FTP, and permission-based directory visibility. This package defaults to the standalone behavior of ProFTPD, but all the needed scripts to have it run by systemd instead are included.

Security Fix(es):

mod_sql in ProFTPD before 1.3.10rc1 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)

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.(CVE-2026-44331)

Severity

8.1 (High)


                    
                      CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

References

URL

Type

	https://www.openeuler.org/zh/security/security-bu…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-42167	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-44331	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "proftpd-1.3.9a-2.oe2403sp1.aarch64.rpm",
          "proftpd-debuginfo-1.3.9a-2.oe2403sp1.aarch64.rpm",
          "proftpd-debugsource-1.3.9a-2.oe2403sp1.aarch64.rpm",
          "proftpd-devel-1.3.9a-2.oe2403sp1.aarch64.rpm",
          "proftpd-ldap-1.3.9a-2.oe2403sp1.aarch64.rpm",
          "proftpd-mysql-1.3.9a-2.oe2403sp1.aarch64.rpm",
          "proftpd-postgresql-1.3.9a-2.oe2403sp1.aarch64.rpm",
          "proftpd-proxy-1.3.9a-2.oe2403sp1.aarch64.rpm",
          "proftpd-sqlite-1.3.9a-2.oe2403sp1.aarch64.rpm",
          "proftpd-utils-1.3.9a-2.oe2403sp1.aarch64.rpm"
        ],
        "src": [
          "proftpd-1.3.9a-2.oe2403sp1.src.rpm"
        ],
        "x86_64": [
          "proftpd-1.3.9a-2.oe2403sp1.x86_64.rpm",
          "proftpd-debuginfo-1.3.9a-2.oe2403sp1.x86_64.rpm",
          "proftpd-debugsource-1.3.9a-2.oe2403sp1.x86_64.rpm",
          "proftpd-devel-1.3.9a-2.oe2403sp1.x86_64.rpm",
          "proftpd-ldap-1.3.9a-2.oe2403sp1.x86_64.rpm",
          "proftpd-mysql-1.3.9a-2.oe2403sp1.x86_64.rpm",
          "proftpd-postgresql-1.3.9a-2.oe2403sp1.x86_64.rpm",
          "proftpd-proxy-1.3.9a-2.oe2403sp1.x86_64.rpm",
          "proftpd-sqlite-1.3.9a-2.oe2403sp1.x86_64.rpm",
          "proftpd-utils-1.3.9a-2.oe2403sp1.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:24.03-LTS-SP1",
        "name": "proftpd",
        "purl": "pkg:rpm/openEuler/proftpd\u0026distro=openEuler-24.03-LTS-SP1"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.3.9a-2.oe2403sp1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "High"
  },
  "details": "ProFTPD is an enhanced FTP server with a focus toward simplicity, security, and ease of configuration. It features a very Apache-like configuration syntax, and a highly customizable server infrastructure, including support for multiple \u0026amp;apos;virtual\u0026amp;apos; FTP servers, anonymous FTP, and permission-based directory visibility. This package defaults to the standalone behavior of ProFTPD, but all the needed scripts to have it run by systemd instead are included.\r\n\r\nSecurity Fix(es):\n\nmod_sql in ProFTPD before 1.3.10rc1 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)\n\nIn 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 \u0026quot;UseReverseDNS on\u0026quot; is enabled, the attacker-supplied hostname is passed unescaped into SQL queries. The character restrictions of DNS names may affect exploitability.(CVE-2026-44331)",
  "id": "OESA-2026-2266",
  "modified": "2026-08-06T11:11:14Z",
  "published": "2026-05-09T11:11:14Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-2266"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-42167"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-44331"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "proftpd security update",
  "upstream": [
    "CVE-2026-42167",
    "CVE-2026-44331"
  ]
}

CVE-2026-42167 (GCVE-0-2026-42167)

Vulnerability from cvelistv5 – Published: 2026-04-28 00:00 – Updated: 2026-05-01 18:22

Summary

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)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-04-29 12:51 UTC

CWE

CWE-89 - Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

Assigner

mitre mitre root

References

7 references

URL	Tags
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-…
https://github.com/ZeroPathAI/proftpd-CVE-2026-42…
https://www.openwall.com/lists/oss-security/2026/…
http://www.openwall.com/lists/oss-security/2026/05/01/4
http://www.openwall.com/lists/oss-security/2026/0…

Impacted products

1 product

Vendor	Product	Version
ProFTPD	ProFTPD	Affected: 1.3.7b , < 1.3.9a (custom) cpe:2.3:a:proftpd:proftpd::::::::

Show details on NVD website

JSON

To clipboard

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CVE-2026-44331 (GCVE-0-2026-44331)

Vulnerability from cvelistv5 – Published: 2026-05-05 19:41 – Updated: 2026-05-06 15:25

Summary

Severity

8.1 (High)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-06 15:22 UTC

CWE

CWE-89 - Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

Assigner

mitre mitre root

References

2 references

URL	Tags
https://github.com/proftpd/proftpd/issues/2057
https://github.com/proftpd/proftpd/commit/7666224…

Impacted products

1 product

Vendor	Product	Version
ProFTPD	ProFTPD	Affected: 0 , ≤ 1.3.9a (custom) cpe:2.3:a:proftpd:proftpd::::::::

Show details on NVD website

JSON

To clipboard

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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.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

OESA-2026-2266 (CVE-2026-42167)

CVE-2026-42167 (GCVE-0-2026-42167)

CVE-2026-44331 (GCVE-0-2026-44331)

Tags

Sightings

Nomenclature

Related by attack behaviour