A bug in Apache Airflow's rendered-template field handling caused nested sensitive-key masking (e.g. nested `password` / `token` / `secret` / `api_key` keys inside a JSON template structure) to be bypassed when the rendered field exceeded `[core] max_templated_field_length`: Airflow stringified the structure before redaction, losing the nested key context, and persisted the plaintext value into `rendered_fields`. An authenticated UI/API user with permission to read rendered template fields could harvest secret values intended to be masked. Affects deployments where Dag authors pass structured JSON to operators with nested sensitive keys. This is a variant of `CWE-200` previously addressed for the user-registered `mask_secret()` patterns in CVE-2025-68438; that fix did not cover the nested sensitive-keyword allowlist. Users who already upgraded for CVE-2025-68438 should additionally upgrade to `apache-airflow` 3.2.2 or later to cover the nested-key path.
References
| Link | Resource |
|---|---|
| https://github.com/apache/airflow/pull/65906 | Issue Tracking Patch |
| https://lists.apache.org/thread/obj79bpxnl7r5olz1gsn0g94y88glnl4 | Mailing List Vendor Advisory |
Configurations
History
01 Jun 2026, 17:06
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://github.com/apache/airflow/pull/65906 - Issue Tracking, Patch | |
| References | () https://lists.apache.org/thread/obj79bpxnl7r5olz1gsn0g94y88glnl4 - Mailing List, Vendor Advisory | |
| First Time |
Apache
Apache airflow |
|
| CPE | cpe:2.3:a:apache:airflow:*:*:*:*:*:*:*:* |
01 Jun 2026, 15:16
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 6.5 |
01 Jun 2026, 09:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-06-01 09:16
Updated : 2026-06-01 17:06
NVD link : CVE-2026-42360
Mitre link : CVE-2026-42360
CVE.ORG link : CVE-2026-42360
JSON object : View
Products Affected
apache
- airflow
CWE
CWE-200
Exposure of Sensitive Information to an Unauthorized Actor
