Apache Airflow: Incomplete redaction allowlist exposes secrets in Connection `extra` to read-permitted users
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.
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2026-45192US | — | — | ||
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… | ||||
references
External citations — patches, advisories, analysis.
- http://www.openwall.com/lists/oss-security/2026/06/01/3WEB
- https://github.com/apache/airflowPACKAGE
- https://github.com/apache/airflow/pull/66673WEB
- https://github.com/pypa/advisory-database/tree/main/vulns/apache-airflow/PYSEC-2026-173.yamlWEB
- https://lists.apache.org/thread/r2q93dg2wp5h9sd9vh6y4y5ljqd9crddWEB
- https://nvd.nist.gov/vuln/detail/CVE-2026-45192ADVISORY
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