Information disclosure in Apache Airflow

CVE-2026-25219

The `access_key` and `connection_string` connection properties were not marked as sensitive names in secrets masker. This means that user with read permission could see the values in Connection UI, as well as when Connection was accidentaly logged to logs, those values could be seen in the logs. Azure Service Bus used those properties to store sensitive values. Possibly other providers could be also affected if they used the same fields to store sensitive data. If you used Azure Service Bus connection with those values set or if you have other connections with those values storing sensitve values, you should upgrade Airflow to 3.1.8

Vulnerability class: Information Disclosure

EPSS: 0.006 (42.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-25219?
CVE-2026-25219 is a medium-severity vulnerability in Apache Airflow, classified under Information Disclosure. CVSS score: 6.5/10. Published 2026-04-15.
How severe is CVE-2026-25219?
Medium severity. CVSS v3 base score is 6.5 out of 10.