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

Severity: low (CVSS 3.7 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-04-18 · updated 2026-10-26
Weakness: CWE-668

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

Affected products

Apache Airflow: from 3.0.0 before 3.2.0 — fixed in 3.2.0

How to fix

Upgrade to a fixed version: Apache Airflow 3.2.0. Check the vendor advisory for mitigations.

References

https://github.com/apache/airflow/pull/63480
https://lists.apache.org/thread/7rnzxofntcznqxnhsmjvvlvygwph7rn5
http://www.openwall.com/lists/oss-security/2026/04/17/6

Get alerted when CVE-2026-32690 or the next vulnerability affects your stack