CVE-2026-32690 Apache Airflow: 3.x - Nested Variable Secret Values Bypass Redaction via max_depth=1

What is CVE-2026-32690?

CVE-2026-32690 is a low-severity vulnerability in Apache Airflow, published on 18 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Secrets in Variables saved as JSON dictionaries were not properly redacted - in case thee variables were retrieved by the user the secrets stored as nested fields were not masked.

If you do not store variables with sensitive values in JSON form, you are not affected. Otherwise please upgrade to Apache Airflow 3.2.0 that has the fix implemented

Weakness: CWE-668

Which versions are affected by CVE-2026-32690?

7 open source packages ship an affected version, including apache-airflow, airflow and apache-airflow-core. It affects 1 product.

Products include Apache Airflow.

How do I fix CVE-2026-32690?

Upgrade apache-airflow to 3.2.0 or later.

Is CVE-2026-32690 being exploited?

There is no known exploitation of CVE-2026-32690 in the wild and no public exploit code.

Other vulnerabilities in Apache Airflow

• CVE-2020-13927 Apache Airflow's Experimental API Authentication Bypass Exploited Critical 9.8
• CVE-2020-11978 Apache Airflow Command Injection Exploited High 8.8
• CVE-2026-33264 Apache Airflow: DAG author RCE on webserver via unrestricted import_string() in BaseSerialization.deserialize() Critical 9.8
• CVE-2023-25754 Apache Airflow: Privilege escalation using airflow logs Critical 9.8
• CVE-2023-22884 Apache Airflow, Apache Airflow MySQL Provider: Arbitrary file read via MySQL provider in Apache Airflow Critical 9.8

All Apache Airflow vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BIT-airflow-2026-32690, ECHO-896a-a1cc-908a, GHSA-w9r4-94fj-xp69, MINI-2p87-cqfr-674m, PYSEC-2026-19, PYSEC-2026-2362.