CVE-2026-50203: A path traversal in the SFTP provider (`SFTPHook.retrieve_directory` / `SFTPOperator(operation=get)`) let a ma

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CRITICAL 9.1REMOTEWATCHLISTUPGRADE

CVE-2026-50203 is a critical-severity flaw (CVSS 9.1) affecting apache-airflow-providers-sftp. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A path traversal in the SFTP provider (`SFTPHook.retrieve_directory` / `SFTPOperator(operation=get)`) let a malicious or compromised remote SFTP server write files outside the configured local destination directory via crafted directory-entry names. No Airflow account is required — the attack surface is any deployment downloading directories from an untrusted SFTP server. Upgrade `apache-airflow-providers-sftp` to 5.8.1 or later.

Why this priority

Critical severity
CISA SSVC: automatable with total technical impact
Remotely exploitable, no login, no user action
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	9.1 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.6% (top 50%)
CISA exploited list	No
Weakness	CWE-22
Published	2026-06-17
Last modified	2026-10-26

Publisher (CNA): Apache Software Foundation · Vendor: apache

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-06-17 13:20 UTCPublished CVE record published
2026-10-26 11:10 UTCUpdated Record last modified

apache apache-airflow-providers-sftp UPGRADE

Affected: < 5.8.1

Fixed in: 5.8.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy apache-airflow-providers-sftp || rpm -q apache-airflow-providers-sftp || apache-airflow-providers-sftp --version

2. UPGRADE to 5.8.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade apache-airflow-providers-sftp

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade apache-airflow-providers-sftp

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Exact fixes by distribution

Python (pip) · apache-airflow-providers-sftp · FIXED · 5.8.1 · vulnerable: < 5.8.1 · source

pip install --upgrade "apache-airflow-providers-sftp>=5.8.1" pip show apache-airflow-providers-sftp

Fedora 46 · selenium-manager · FIXED · 4.45.0-3.fc46 · FEDORA-2026-0af4ceb64a · source

sudo dnf upgrade --advisory=FEDORA-2026-0af4ceb64a

Fedora ELN · libdnf · FIXED · 0.76.0-2.eln159 · FEDORA-2026-dbd263e9d4 · source

sudo dnf upgrade --advisory=FEDORA-2026-dbd263e9d4

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-50203?

apache-airflow-providers-sftp: upgrade to 5.8.1. Exact commands for each OS are on this page.

Is CVE-2026-50203 being exploited?

CVE-2026-50203 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-50203 affect?

CVE-2026-50203 affects apache-airflow-providers-sftp. Severity is critical (CVSS 9.1). A path traversal in the SFTP provider (`SFTPHook.retrieve_directory` / `SFTPOperator(operation=get)`) let a malicious or compromised remote SFTP server write files outside the configured local destination directory via crafted directory-ent

How urgent is CVE-2026-50203?

Priority 57/100. Critical severity; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action; On your watchlist

Software pages

Apache Airflow vulnerabilities

References

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