CVE-2026-31987 Apache Airflow: JWT token appearing in logs
Apache Airflow exposes JWT tokens in logs, allowing UI users to impersonate Dag Authors and escalate privileges.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-31987?
CVE-2026-31987 is a high-severity vulnerability in Apache Airflow, published on 16 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-532
Which versions are affected by CVE-2026-31987?
4 open source packages ship an affected version, including apache-airflow and airflow. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
apache-airflow PyPI | From 3.0.0 | 3.2.0 |
apache-airflow PyPI | From 3.0.0 | 3.2.0 |
apache-airflow PyPI | From 3.0.0 | 3.2.0 |
airflow Bitnami | From 3.0.0 | 3.2.0 |
Products include Apache Airflow.
How do I fix CVE-2026-31987?
Upgrade apache-airflow to 3.2.0 or later.
Is CVE-2026-31987 being exploited?
There is no known exploitation of CVE-2026-31987 in the wild and no public exploit code.
Other vulnerabilities in Apache Airflow
- CVE-2020-13927 Apache Airflow's Experimental API Authentication Bypass
- CVE-2020-11978 Apache Airflow Command Injection
- CVE-2026-33264 Apache Airflow: DAG author RCE on webserver via unrestricted import_string() in BaseSerialization.deserialize()
- CVE-2023-25754 Apache Airflow: Privilege escalation using airflow logs
- CVE-2023-22884 Apache Airflow, Apache Airflow MySQL Provider: Arbitrary file read via MySQL provider in Apache Airflow
Sources
Also known as BIT-airflow-2026-31987, ECHO-84a5-62f5-0d42, GHSA-phv5-vq5p-qhp7, MINI-47pc-977r-3mqr, PYSEC-2026-2352.