CVE-2026-49486 json
Apache Airflow FTP provider: FTP Provider does not protect FTPS data channel (missing PROT_P)
published 4mo ago modified 17d ago also GHSA-fgch-86x8-fv43 , PYSEC-2026-238 , EUVD-2026-39627
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 38%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- pypi apache-airflow-providers-ftp 3.15.1
- Apache Software Foundation Apache Airflow FTP provider 3.15.1
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 4mo ago
Exploit prediction
0.44% chance of exploitation in the next 30 days, higher than 38% of all scored CVEs (FIRST EPSS, 2026-11-11).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| OSV | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| GitHub | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | apache-airflow-providers-ftp | <3.15.1 |
3.15.1 |
Affected products
- Apache Software Foundation Apache Airflow FTP provider
Classification
- Weakness
-
- CWE-319 Cleartext Transmission of Sensitive Information
References
-
github.com
/apache/airflow/pull/67946
patch, web, issue-tracking
-
github.com
/apache/airflow/commit/a929d142d667f71dea29c565a7167216a9c30378
web
-
lists.apache.org
/thread/gwnsxlt9hfj5pc543wxtogbnjdn04xj1
vendor-advisory, web, mailing-list, advisory
-
openwall.com
/lists/oss-security/2026/06/26/1
web
-
nvd.nist.gov
/vuln/detail/CVE-2026-49486
advisory
-
github.com
/apache/airflow
package
-
github.com
/apache/airflow/releases/tag/providers-ftp/3.15.1
web
-
github.com
/pypa/advisory-database/tree/main/vulns/apache-airflow-providers-ftp/PYSEC-2026-238.yaml
web
-
github.com
/advisories/GHSA-fgch-86x8-fv43
advisory
Sources
- CVE List CVE-2026-49486
- GitHub Advisory GHSA-fgch-86x8-fv43
- NVD CVE-2026-49486
- OSV PYSEC-2026-238
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