GHSA-FGCH-86X8-FV43

Vulnerability from github – Published: 2026-06-26 09:30 – Updated: 2026-09-04 18:47
VLAI
Summary
Apache Airflow FTP provider: FTP Provider does not protect FTPS data channel (missing PROT_P)
Details

The Apache Airflow FTP provider's FTPSHook.get_conn() created an ftplib.FTP_TLS connection but never called prot_p(), so although the control channel was TLS-protected the data channel was transmitted in cleartext. Any deployment using FTPSHook or FTPSFileTransmitOperator to move files over FTPS exposed file contents and credentials-in-transit to a network attacker able to observe the data connection. Upgrade apache-airflow-providers-ftp to 3.15.1 or later, which issues PROT P to encrypt the data channel.

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
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{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "apache-airflow-providers-ftp"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.15.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-49486"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-319"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-09-04T18:47:12Z",
    "nvd_published_at": "2026-06-26T08:16:23Z",
    "severity": "HIGH"
  },
  "details": "The Apache Airflow FTP provider\u0027s `FTPSHook.get_conn()` created an `ftplib.FTP_TLS` connection but never called `prot_p()`, so although the control channel was TLS-protected the data channel was transmitted in cleartext. Any deployment using `FTPSHook` or `FTPSFileTransmitOperator` to move files over FTPS exposed file contents and credentials-in-transit to a network attacker able to observe the data connection. Upgrade apache-airflow-providers-ftp to `3.15.1` or later, which issues `PROT P` to encrypt the data channel.",
  "id": "GHSA-fgch-86x8-fv43",
  "modified": "2026-09-04T18:47:12Z",
  "published": "2026-06-26T09:30:46Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-49486"
    },
    {
      "type": "WEB",
      "url": "https://github.com/apache/airflow/pull/67946"
    },
    {
      "type": "WEB",
      "url": "https://github.com/apache/airflow/commit/a929d142d667f71dea29c565a7167216a9c30378"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/apache/airflow"
    },
    {
      "type": "WEB",
      "url": "https://github.com/apache/airflow/releases/tag/providers-ftp/3.15.1"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/apache-airflow-providers-ftp/PYSEC-2026-238.yaml"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread/gwnsxlt9hfj5pc543wxtogbnjdn04xj1"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/06/26/1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Apache Airflow FTP provider: FTP Provider does not protect FTPS data channel (missing PROT_P)"
}



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