Severity: low
Affected versions:
- Apache Airflow (apache-airflow) before 3.2.2
Description:
A bug in the GET `/api/v2/connections/{connection_id}` REST API endpoint in
Apache Airflow allowed an authenticated UI/API user with Connection-read
permission to retrieve secrets stored in a Connection's `extra` JSON blob under
field names not present in the redaction allowlist (`DEFAULT_SENSITIVE_FIELDS`)
— for example, official Slack-provider credential field names were returned in
plaintext. Affects deployments that store credentials in Connection `extra`
blobs and grant Connection-read access to multiple users. Users are advised to
upgrade to `apache-airflow` 3.2.2 or later. As a defense-in-depth mitigation,
deployment operators can store sensitive credential values in a secret-backend
rather than inlined into the Connection's `extra` field.
Credit:
Or Sahar, Secure From Scratch (finder)
Jarek Potiuk (@potiuk) (remediation developer)
References:
https://github.com/apache/airflow/pull/66673
https://airflow.apache.org/
https://www.cve.org/CVERecord?id=CVE-2026-45192
