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Critical· 9.1official fix available

CVE-2026-42252

A critical vulnerability in Apache Airflow's documentation example allowed attackers to inject shell commands via the trigger API by manipulating the `conf` field. The fix involves updating to Apache Airflow 3.2.2 or later, which corrects the documentation to include proper shell-quoting and safety warnings.

publishedJun 1, 2026
last modifiedJul 21, 2026
sourcesNVD
severity · cvss
9.1
critical · how bad it is
exploitation · epss
<1%
31th percentile · chance of exploitation in 30 days
(ai-assisted) A model wrote this summary from the official data, so double-check it against the source before you act on it. Read the official advisory →
auto-deletes from the system
counting…on Aug 20, 2026

An official fix is available, so this entry is kept for 30 days and then removed automatically.

01

Who is affected

Users of Apache Airflow

02

Real-world impact

Attackers could execute arbitrary shell commands on Airflow workers if they had permission to trigger affected DAGs.

03

Why this severity

CVSS 9.1 (Critical): High confidence in exploitation via the trigger API, leading to full system compromise.

04

What to do about it

official fix available
recommended steps
  1. 01Upgrade Apache Airflow to version 3.2.2 or later to apply the corrected documentation and security fix.

NVD description and Apache Airflow PR 64129

05

Timeline

  1. Jun 1, 2026 · Jun 1, 2026
    Published
    Disclosed and added to the National Vulnerability Database.
  2. Jul 21, 2026 · 14d ago
    Advisory updated
    The NVD record was last revised.
  3. Jul 21, 2026 · 14d ago
    Official fix available
    A vendor patch or mitigation now exists — see the remediation steps above.
06

How it’s attacked

Attack vectorNetwork (remote)
Attack complexityLow
Privileges requiredNone
User interactionNone needed
ScopeUnchanged
Confidentiality impactHigh
Integrity impactHigh
Availability impactNone
07

References & advisories

NVD advisory ↗Search advisories ↗
(ai-assisted) A model wrote this summary from the official data, so double-check it against the source before you act on it. Read the official advisory →