CVE-2025-68438: Apache Airflow: Secrets in rendered templates could contain parts of sensitive values when truncated
This Apache advisory covers CVE-2025-68438 in Apache Airflow.
- CVE-2025-68438
Key facts
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N· base score 7.5, scored by CISA-ADPAttack vector: network. Attack complexity: low. Privileges required: none. User interaction: none. Scope: unchanged. Confidentiality impact: high. Integrity impact: none. Availability impact: none.- Weakness
- CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
- CISA SSVC
- Exploitation: none observed. Automatable: yes. Technical impact: partial. CISA, .
- CISA KEV
- Not listed (catalogue checked )
- Affected
- Apache Airflow 3.1.0 before 3.1.6
- Fixed in
- 3.1.6
- Source published
- Source revised
- Listed by VulniPulse
Compiled by VulniPulse from the linked sources. How records are collected and checked.
Affected products & platforms
Description
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
Text from the source record.
- Apache Airflow 3.1.0 before 3.1.6
Official advisory · medium-confidence parse· fetched ·verify at source
How to fix CVE-2025-68438
Upgrade to a fixed release named by Apache:
- 3.1.6
Vendor guidance
- Users are recommended to upgrade to 3.1.6 or later, which fixes this issue
Support dates for the fixed release lines
- Apache Airflow 3.1: support ended
More Apache Software Foundation advisories
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Apache Software Foundation advisories, January 2026All Apache Software Foundation advisories
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