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.
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History
Mon, 01 Jun 2026 11:30:00 +0000
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Apache
Apache airflow |
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Apache
Apache airflow |
Mon, 01 Jun 2026 09:15:00 +0000
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| Description | 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. | |
| Title | Apache Airflow: Rendered template truncation bypasses nested sensitive-key masking | |
| Weaknesses | CWE-200 | |
| References |
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Status: PUBLISHED
Assigner: apache
Published:
Updated: 2026-06-01T07:50:37.777Z
Reserved: 2026-04-26T19:48:31.553Z
Link: CVE-2026-42360
No data.
Status : Received
Published: 2026-06-01T09:16:19.033
Modified: 2026-06-01T09:16:19.033
Link: CVE-2026-42360
No data.
OpenCVE Enrichment
Updated: 2026-06-01T11:30:27Z