Vulnerability-Lookup

CVE-2026-49818 (GCVE-0-2026-49818)

Vulnerability from cvelistv5 – Published: 2026-06-09 07:42 – Updated: 2026-06-10 17:37

Title

Apache Airflow Samba provider: Path traversal in GCSToSambaOperator via GCS object names

Summary

The Apache Airflow Samba provider's `GCSToSambaOperator` joined GCS object names to the SMB destination path without a containment check, so an object named with `../` segments resolved a write path outside the configured `destination_path`. An attacker able to write objects into the source GCS bucket — typically an external data producer distinct from the trusted DAG author — could write files to arbitrary locations on the Samba target when the operator ran. Upgrade apache-airflow-providers-samba to 4.12.6 or later, which validates the resolved destination stays within `destination_path`.

Severity

6.5 (Medium)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-06-09 15:27 UTC

CWE

CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Assigner

apache

References

3 references

URL	Tags
https://github.com/apache/airflow/pull/67857	patch
https://lists.apache.org/thread/3vs0m3p51psgf54tt…	vendor-advisory
http://www.openwall.com/lists/oss-security/2026/06/09/8

Impacted products

1 product

Vendor	Product	Version
Apache Software Foundation	Apache Airflow Samba provider	Affected: 0 , < 4.12.6 (semver)

Credits

secuholic Jarek Potiuk

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-49818

Vulnerability from fkie_nvd - Published: 2026-06-09 09:16 - Updated: 2026-07-23 08:10

Severity

6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Summary

References

URL	Tags
security@apache.org	https://github.com/apache/airflow/pull/67857	Issue Tracking, Patch
security@apache.org	https://lists.apache.org/thread/3vs0m3p51psgf54tts18d6336g24x3sf	Mailing List, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	http://www.openwall.com/lists/oss-security/2026/06/09/8	Mailing List, Third Party Advisory

Impacted products

	Vendor	Product	Version
	apache	apache-airflow-providers-samba	*

JSON

To clipboard

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  "affected": [
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      "affectedData": [
        {
          "collectionURL": "https://pypi.python.org",
          "defaultStatus": "unaffected",
          "packageName": "apache-airflow-providers-samba",
          "product": "Apache Airflow Samba provider",
          "vendor": "Apache Software Foundation",
          "versions": [
            {
              "lessThan": "4.12.6",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
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    },
    {
      "lang": "es",
      "value": "El \u0027GCSToSambaOperator\u0027 del proveedor Samba de Apache Airflow un\u00eda nombres de objetos de GCS a la ruta de destino SMB sin una verificaci\u00f3n de contenci\u00f3n, por lo que un objeto nombrado con segmentos \u0027../\u0027 resolv\u00eda una ruta de escritura fuera de la \u0027destination_path\u0027 configurada. Un atacante capaz de escribir objetos en el bucket GCS de origen - t\u00edpicamente un productor de datos externo distinto del autor de DAG de confianza - podr\u00eda escribir archivos en ubicaciones arbitrarias en el destino Samba cuando el operador se ejecutaba. Actualice apache-airflow-providers-samba a la versi\u00f3n 4.12.6 o posterior, que valida que el destino resuelto permanezca dentro de \u0027destination_path\u0027."
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}

GHSA-F6VJ-48FM-HMVX

Vulnerability from github – Published: 2026-06-09 09:32 – Updated: 2026-07-31 16:37

Summary

Apache Airflow has a Path Traversal issue

Details

The Apache Airflow Samba provider's GCSToSambaOperator joined GCS object names to the SMB destination path without a containment check, so an object named with ../ segments resolved a write path outside the configured destination_path. An attacker able to write objects into the source GCS bucket — typically an external data producer distinct from the trusted DAG author — could write files to arbitrary locations on the Samba target when the operator ran. Upgrade apache-airflow-providers-samba to 4.12.6 or later, which validates the resolved destination stays within destination_path.

Severity

6.5 (Medium)


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

Show details on source website

JSON

To clipboard

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        "name": "apache-airflow-providers-samba"
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        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-49818"
  ],
  "database_specific": {
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      "CWE-22"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-07-31T16:37:52Z",
    "nvd_published_at": "2026-06-09T09:16:30Z",
    "severity": "MODERATE"
  },
  "details": "The Apache Airflow Samba provider\u0027s `GCSToSambaOperator` joined GCS object names to the SMB destination path without a containment check, so an object named with `../` segments resolved a write path outside the configured `destination_path`. An attacker able to write objects into the source GCS bucket \u2014 typically an external data producer distinct from the trusted DAG author \u2014 could write files to arbitrary locations on the Samba target when the operator ran. Upgrade apache-airflow-providers-samba to 4.12.6 or later, which validates the resolved destination stays within `destination_path`.",
  "id": "GHSA-f6vj-48fm-hmvx",
  "modified": "2026-07-31T16:37:52Z",
  "published": "2026-06-09T09:32:07Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-49818"
    },
    {
      "type": "WEB",
      "url": "https://github.com/apache/airflow/pull/67857"
    },
    {
      "type": "WEB",
      "url": "https://github.com/apache/airflow/commit/bc1df029af15cb1d35d5ca0d33bf9235500137cc"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/apache/airflow"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/apache-airflow-providers-samba/PYSEC-2026-208.yaml"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread/3vs0m3p51psgf54tts18d6336g24x3sf"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/06/09/8"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Apache Airflow has a Path Traversal issue"
}

PYSEC-2026-208

Vulnerability from pysec - Published: 2026-06-09 09:16 - Updated: 2026-06-13 09:37

Details

Severity

6.5 (Medium)


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

Impacted products

Name	purl
apache-airflow-providers-samba	pkg:pypi/apache-airflow-providers-samba

Aliases

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {},
      "package": {
        "ecosystem": "PyPI",
        "name": "apache-airflow-providers-samba",
        "purl": "pkg:pypi/apache-airflow-providers-samba"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.12.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.0.0",
        "1.0.0b1",
        "1.0.0b2",
        "1.0.0rc1",
        "1.0.1",
        "1.0.1rc1",
        "2.0.0",
        "2.0.0rc1",
        "2.0.0rc2",
        "3.0.0",
        "3.0.0rc1",
        "3.0.1",
        "3.0.1rc1",
        "3.0.2",
        "3.0.2rc1",
        "3.0.3",
        "3.0.3rc1",
        "3.0.4",
        "3.0.4rc1",
        "4.0.0",
        "4.0.0rc1",
        "4.0.0rc2",
        "4.1.0",
        "4.1.0rc1",
        "4.10.0",
        "4.10.0rc1",
        "4.10.1",
        "4.10.1rc1",
        "4.10.2",
        "4.10.2rc1",
        "4.10.3",
        "4.10.3rc1",
        "4.11.0",
        "4.11.0rc1",
        "4.11.1",
        "4.11.1rc1",
        "4.12.0",
        "4.12.0rc1",
        "4.12.1",
        "4.12.1rc1",
        "4.12.2",
        "4.12.2rc1",
        "4.12.3",
        "4.12.3rc1",
        "4.12.4",
        "4.12.4rc1",
        "4.12.5",
        "4.12.5rc1",
        "4.12.6rc1",
        "4.2.0",
        "4.2.0rc1",
        "4.2.0rc2",
        "4.2.1",
        "4.2.1rc1",
        "4.2.2",
        "4.2.2rc1",
        "4.3.0",
        "4.3.0rc1",
        "4.4.0",
        "4.4.0rc1",
        "4.5.0",
        "4.5.0rc1",
        "4.6.0",
        "4.6.0rc1",
        "4.6.0rc2",
        "4.7.0",
        "4.7.0rc1",
        "4.7.1",
        "4.7.1rc1",
        "4.8.0",
        "4.8.0rc1",
        "4.9.0",
        "4.9.0rc1",
        "4.9.0rc2",
        "4.9.1",
        "4.9.1rc1",
        "4.9.2",
        "4.9.2rc1"
      ]
    }
  ],
  "aliases": [
    "CVE-2026-49818",
    "GHSA-f6vj-48fm-hmvx"
  ],
  "details": "The Apache Airflow Samba provider\u0027s `GCSToSambaOperator` joined GCS object names to the SMB destination path without a containment check, so an object named with `../` segments resolved a write path outside the configured `destination_path`. An attacker able to write objects into the source GCS bucket \u2014 typically an external data producer distinct from the trusted DAG author \u2014 could write files to arbitrary locations on the Samba target when the operator ran. Upgrade apache-airflow-providers-samba to 4.12.6 or later, which validates the resolved destination stays within `destination_path`.",
  "id": "PYSEC-2026-208",
  "modified": "2026-06-13T09:37:37.959463Z",
  "published": "2026-06-09T09:16:30.443Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "http://www.openwall.com/lists/oss-security/2026/06/09/8"
    },
    {
      "type": "ADVISORY",
      "url": "https://lists.apache.org/thread/3vs0m3p51psgf54tts18d6336g24x3sf"
    },
    {
      "type": "FIX",
      "url": "https://github.com/apache/airflow/pull/67857"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-f6vj-48fm-hmvx"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

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

CVE-2026-49818 (GCVE-0-2026-49818)

FKIE_CVE-2026-49818

GHSA-F6VJ-48FM-HMVX

PYSEC-2026-208

Tags

Sightings

Nomenclature