CVE-2026-49487
Apache Airflow: Task-instance API exposes secrets in deferred trigger kwargs
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.
Fixes and workarounds
Fix
The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.
Source: CNA: apacheAffected products and versions
| Product | Versions | Authority |
|---|---|---|
| Apache Airflow Apache Software Foundation apache-airflow
pypi |
≥ 0; < 3.0.0 (affected, semver)
Other versions: unaffected |
CNA: apache |
| Apache Airflow Apache Software Foundation apache-airflow-core
pypi |
≥ 3.0.0; < 3.3.0 (affected, semver)
Other versions: unaffected |
CNA: apache |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 3.1 / 6.5 medium |
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N | ADP: CISA-ADP |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://github.com/apache/airflow/pull/67868CNA: apache · patch
- https://lists.apache.org/thread/qlw6pozlzlfhkvmbgqsbjlq6vj4v0pc4CNA: apache · vendor-advisory
- http://www.openwall.com/lists/oss-security/2026/07/07/6ADP: CVE
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