CVE-2026-31987: Apache Airflow: JWT token appearing in logs

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-04-16 · updated 2026-10-26
Weakness: CWE-532

Description

JWT Tokens used by tasks were exposed in logs. This could allow UI users to act as Dag Authors. Users are advised to upgrade to Airflow version that contains fix. Users are recommended to upgrade to version 3.2.0, which fixes this issue.

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/issues/62428
https://github.com/apache/airflow/issues/62773
https://github.com/apache/airflow/pull/62964
https://lists.apache.org/thread/pvsrtxzwo9xy6xgknmwslv4zrw70kt6g
http://www.openwall.com/lists/oss-security/2026/04/16/7

Get alerted when CVE-2026-31987 or the next vulnerability affects your stack