Vulnerability-Lookup

ubuntu-cve-2026-56452

Vulnerability from osv_ubuntu

Published

2026-07-20 21:16

Modified

2026-07-29 07:59

Summary

Details

Path traversal in the sshd-scp component of Apache MINA SSHD. Apache MINA SSHD is a Java library for client-side and server-side SSH. The implementation of receiving files or directories via SCP did not validate filenames in SCP "C" or "D" commands. A malicious sender could send filenames containing paths, resulting in files to be written in attacker-controlled places. The issue affects only * applications that use no longer supported Apache MINA SSHD versions < 2.0.0 and use the SCP functions to receive files, * or applications using sshd-scp in Apache MINA SSHD >= 2.0.0 to receive files. Applications using Apache MINA SSHD >= 2.0.0 not using sshd-scp are not affected. The issue is fixed in Apache MINA 2.19.0 and 3.0.0-M5. Affected applications are advised to upgrade to these versions.

Severity

7.5 (High)


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

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2026-56452	REPORT
	https://www.cve.org/CVERecord?id=CVE-2026-56452	REPORT
	https://www.openwall.com/lists/oss-security/2026/…	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libmina-java",
            "binary_version": "1.1.7.dfsg-11"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "mina",
        "purl": "pkg:deb/ubuntu/mina@1.1.7.dfsg-11?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.1.7.dfsg-11"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libmina2-java",
            "binary_version": "2.0.9-2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "mina2",
        "purl": "pkg:deb/ubuntu/mina2@2.0.9-2?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.0.7+dfsg-2",
        "2.0.9-1",
        "2.0.9-2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libmina-java",
            "binary_version": "1.1.7.dfsg-12"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "mina",
        "purl": "pkg:deb/ubuntu/mina@1.1.7.dfsg-12?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.1.7.dfsg-11",
        "1.1.7.dfsg-12"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libmina2-java",
            "binary_version": "2.0.16-2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "mina2",
        "purl": "pkg:deb/ubuntu/mina2@2.0.16-2?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.0.16-2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libmina-java",
            "binary_version": "1.1.7.dfsg-13"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "mina",
        "purl": "pkg:deb/ubuntu/mina@1.1.7.dfsg-13?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.1.7.dfsg-13"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libmina2-java",
            "binary_version": "2.0.19-2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "mina2",
        "purl": "pkg:deb/ubuntu/mina2@2.0.19-2?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.0.19-2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libmina-java",
            "binary_version": "1.1.7.dfsg-13"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "mina",
        "purl": "pkg:deb/ubuntu/mina@1.1.7.dfsg-13?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.1.7.dfsg-13"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libmina2-java",
            "binary_version": "2.1.5-1ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:22.04:LTS",
        "name": "mina2",
        "purl": "pkg:deb/ubuntu/mina2@2.1.5-1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.1.4-2",
        "2.1.5-1",
        "2.1.5-1ubuntu0.1~esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libmina-java",
            "binary_version": "1.1.7.dfsg-13ubuntu1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "mina",
        "purl": "pkg:deb/ubuntu/mina@1.1.7.dfsg-13ubuntu1?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.1.7.dfsg-13",
        "1.1.7.dfsg-13ubuntu1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libmina2-java",
            "binary_version": "2.2.1-3ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:24.04:LTS",
        "name": "mina2",
        "purl": "pkg:deb/ubuntu/mina2@2.2.1-3ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.2.1-3",
        "2.2.1-3ubuntu0.1~esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libmina2-java",
            "binary_version": "2.2.1-4ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:26.04:LTS",
        "name": "mina2",
        "purl": "pkg:deb/ubuntu/mina2@2.2.1-4ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.2.1-4",
        "2.2.1-4ubuntu0.1~esm1"
      ]
    }
  ],
  "aliases": [],
  "details": "Path traversal in the sshd-scp component of Apache MINA SSHD.\u00a0Apache MINA SSHD is a Java library for client-side and server-side SSH. The implementation of receiving files or directories via SCP did not validate filenames in SCP \"C\" or \"D\" commands. A malicious sender could send filenames containing paths, resulting in files to be written in attacker-controlled places. The issue affects only   *  applications that use no longer supported Apache MINA SSHD versions \u003c 2.0.0 and use the SCP functions to receive files,   *  or applications using sshd-scp in Apache MINA SSHD \u003e= 2.0.0 to receive files. Applications using Apache MINA SSHD \u003e= 2.0.0 not using sshd-scp are not affected. The issue is fixed in Apache MINA 2.19.0 and 3.0.0-M5. Affected applications are advised to upgrade to these versions.",
  "id": "UBUNTU-CVE-2026-56452",
  "modified": "2026-07-29T07:59:16Z",
  "published": "2026-07-20T21:16:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-56452"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-56452"
    },
    {
      "type": "REPORT",
      "url": "https://www.openwall.com/lists/oss-security/2026/07/20/15"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-56452"
  ]
}

CVE-2026-56452 (GCVE-0-2026-56452)

Vulnerability from cvelistv5 – Published: 2026-07-20 20:26 – Updated: 2026-07-21 17:15

Title

Apache MINA SSHD: Path traversal in SCP file reception

Summary

Severity

7.5 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-21 17:10 UTC

CWE

CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-73 - External Control of File Name or Path

Assigner

apache

References

2 references

URL	Tags
https://lists.apache.org/thread/xgoqvmksmd94fsqnz…	vendor-advisory
http://www.openwall.com/lists/oss-security/2026/0…

Impacted products

1 product

Vendor	Product	Version
Apache Software Foundation	Apache MINA SSHD	Affected: 0 , ≤ 2.18.0 (maven) Affected: 3.0.0-M1 , ≤ 3.0.0-M4 (maven)

Credits

Unbbal

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2026-07-20T22:20:00.765Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        "references": [
          {
            "url": "http://www.openwall.com/lists/oss-security/2026/07/20/15"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
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            "other": {
              "content": {
                "id": "CVE-2026-56452",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-21T17:10:14.573635Z",
                "version": "2.0.3"
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              "type": "ssvc"
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        ],
        "providerMetadata": {
          "dateUpdated": "2026-07-21T17:15:49.562Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://repo.maven.apache.org/maven2",
          "defaultStatus": "unaffected",
          "packageName": "org.apache.sshd:sshd-scp",
          "product": "Apache MINA SSHD",
          "vendor": "Apache Software Foundation",
          "versions": [
            {
              "lessThanOrEqual": "2.18.0",
              "status": "affected",
              "version": "0",
              "versionType": "maven"
            },
            {
              "lessThanOrEqual": "3.0.0-M4",
              "status": "affected",
              "version": "3.0.0-M1",
              "versionType": "maven"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Unbbal"
        }
      ],
      "descriptions": [
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          "supportingMedia": [
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      ],
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          "url": "https://lists.apache.org/thread/xgoqvmksmd94fsqnzqjdtfjxf35os9no"
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      ],
      "source": {
        "discovery": "EXTERNAL"
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      "title": "Apache MINA SSHD: Path traversal in SCP file reception",
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    "datePublished": "2026-07-20T20:26:28.301Z",
    "dateReserved": "2026-06-22T13:31:17.496Z",
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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.

Action not permitted

ubuntu-cve-2026-56452

Vulnerability from osv_ubuntu

CVE-2026-56452 (GCVE-0-2026-56452)

Tags

Sightings

Nomenclature