Apache Airflow: Secrets in rendered templates could contain parts of sensitive values when truncated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and GitHub. Impact type from CWE-200.
Summary
In Apache Airflow versions before 3.1.6, when rendered template fields in a Dag exceed [core] max_templated_field_length, sensitive values could be exposed in cleartext in the Rendered Templates UI. This occurred because serialization of those fields used a secrets masker instance that did not include user-registered mask_secret() patterns, so secrets were not reliably masked before truncation and display. Users are recommended to upgrade to 3.1.6 or later, which fixes this issue
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Apache | Apache Airflow | 3.1.0 to before 3.1.6 | 3.1.6 | Patch available | CNA |
| — | apache-airflow (PyPI) | 3.1.0 to before 3.1.6 | 3.1.6 | Patch available | GHSA-3qmm-r55x-hpxx |
- Apache Airflow VendorApache Affected 3.1.0 to before 3.1.6 Fixed in 3.1.6 Patch available CNA
- apache-airflow (PyPI) Vendor— Affected 3.1.0 to before 3.1.6 Fixed in 3.1.6 Patch available GHSA-3qmm-r55x-hpxx
Remediation
- Fix · CNA Apache Airflow (Apache Software Foundation) Fixed in 3.1.6
- Fix · GHSA-3qmm-r55x-hpxx apache-airflow (PyPI) Fixed in 3.1.6 Advisory →
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Apache Airflow 3.1.6
2 records Highest priority Priority MEDIUM 2 MEDIUM
Other records, highest priority first
- TI-2025-42165 Apache Airflow: proxy credentials for various providers might leak in task logsPriority MEDIUM 43
Timeline
- 2026-10-02 Threatist record created from CVE-2025-68438
- 2026-10-03 Alias added: GHSA-3qmm-r55x-hpxx
- 2026-11-03 Fix available: [email protected] · CNA
References
Advisory 3
More Apache Airflow vulnerabilities
- TI-2020-10905 Missing authentication in Apache Airflow KEVCVSS 3.1CRITICAL 9.8
- TI-2020-09638 OS command injection in Apache Airflow KEVCVSS 3.1HIGH 8.8
- TI-2022-19017 Apache Airflow <2.4.0 has an RCE in a bash example CVSS 3.1HIGH 8.8
- TI-2021-16140 Apache Airflow: Variable Import endpoint missed authentication check CVSS 3.1CRITICAL 9.8
- TI-2022-08169 Apache Airflow: RCE in example DAGs CVSS 3.1HIGH 8.8
- TI-2024-26776 Apache Airflow: DAG Author Code Execution possibility in airflow-scheduler CVSS 3.1HIGH 8.8
Sources
- CVE-2025-68438 · CVE Program
- CVE-2025-68438 · NVD
- FIRST EPSS
- GHSA-3qmm-r55x-hpxx · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences