Secret disclosure via process-local log masking
Published Apr 13, 2026 · Updated Apr 13, 2026
Sensitive-data exposure in Apache Airflow 3.0.0 through 3.1.8 allows remote authenticated users to read secrets in task logs. The deprecated airflow.sdk.execution_time.secrets_masker import sends mask_secret calls only to the task process, so the supervisor writes matching values without redaction. Exposure requires a DAG to use that deprecated import and the attacker to have access to its run logs; the reported consequence is disclosure of logged secrets.
Summary
What happened
Sensitive-data exposure in Apache Airflow 3.0.0 through 3.1.8 allows remote authenticated users to read secrets in task logs. The deprecated airflow.sdk.execution_time.secrets_masker import sends mask_secret calls only to the task process, so the supervisor writes matching values without redaction. Exposure requires a DAG to use that deprecated import and the attacker to have access to its run logs; the reported consequence is disclosure of logged secrets.
The record
- CVE
- CVE-2025-66236
- Published
- Apr 13, 2026
- Updated
- Apr 13, 2026
- Vendor
- The Apache Software Foundation
- Product
- Apache Airflow
- Classifications
- CWE-532
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Apr 13, 2026CVE publishedPublication date reported by the CVE source.
- Apr 13, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=3.0.0 <3.2.0
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Your stack
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