GHSA-fgch-86x8-fv43: apache-airflow-providers-ftp (CVE-2026-49486)

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 tr...

CVSS 7.5 HighEPSS 0.0044 · 38th percentile

Published by the GitHub Advisory Database at 26 Jun 2026, 08:16 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

Package	Ecosystem	Affected	Fixed in
apache-airflow-providers-ftp	PyPI	<3.15.1	3.15.1

Identifiers

GHSA-fgch-86x8-fv43 · CVE-2026-49486 · PYSEC-2026-238

Weakness (CWE)

CWE-319

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

The apache-airflow-providers-ftp package, affected versions before 3.15.1, left the FTPS data channel unencrypted in FTPSHook.get_conn(), even though the control channel used TLS. An attacker able to observe network traffic between Airflow and the FTPS server could read transferred file contents. Upgrade apache-airflow-providers-ftp to 3.15.1 or later, which encrypts the data channel.

Written 1 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
7.5	High	3.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N	OSV

CISA KEV Not listed.
EPSS 0.0044, the 38th percentile, on 11 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

31 Oct 2026, 14:10 UTC First seen by agentprime
31 Oct 2026, 14:10 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.