Vulnerability · Published Jul 7, 2026 · Assigned by apache
CVE-2026-49487Apache Airflow: Task-instance API exposes secrets in deferred trigger kwargs
Medium 6.5
In plain English
A medium-severity information exposure in Apache Airflow from Apache Software Foundation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 52% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
In Apache Airflow before 3.3.0, the REST API task-instance detail and list endpoints returned a deferred task's trigger kwargs without masking. When a deferred operator passed a secret (for example a provider API key) into its trigger, any authenticated user with DAG-scoped task-instance read access for that DAG could read that secret in clear text while the task was deferred. Users should upgrade to apache-airflow 3.3.0 or later, which masks sensitive values in trigger kwargs returned by the API.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| PyPI | apache-airflow | 3.3.0 | GHSA-22hf-vx2v-gjff |
| PyPI | apache-airflow | 3.3.0 | PYSEC-2026-2088 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Apache Software Foundation | Apache Airflow | 0 – before 3.0.0 |
| Apache Software Foundation | Apache Airflow | 3.0.0 – before 3.3.0 |
Weakness: CWE-200 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N