Medium [CVE-2026-50204] Apache Airflow's audit log stored Connection and Variable secret values in cleartext in the `Log.extra` column because the secrets masker matched only on configured sensitive key names
This medium-severity Apache Software Foundation advisory covers CVE-2026-50204; related products: Apache Airflow.
Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.
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Summary
Apache Airflow's audit log stored Connection and Variable secret values in cleartext in the `Log.extra` column because the secrets masker matched only on configured sensitive key names.
An authenticated low-privilege user with read access to the event-log / audit API — with no prior access to the affected connection or variable — could read those rows and recover the credentials verbatim. Users should upgrade to apache-airflow 3.4.0 or later, which masks these values and restricts the affected audit rows to authorized users.
Airflow 2.x is also affected; Airflow 2 has reached end of life and will not receive a fix, so Airflow 2 users should upgrade to Apache Airflow 3.4.0 or later.
Is CVE-2026-50204 exploited?
No exploitation is reported in the sources VulniPulse tracks: CVE-2026-50204 is not in the CISA KEV catalog (checked ) and this advisory does not report exploitation. That is not proof the vulnerability cannot be exploited.
How do I fix CVE-2026-50204?
Upgrade to a fixed release named by Apache:
- 3.4.0
Confirm against the vendor advisory before you patch.
- Apache Airflow before 3.0.0
- Apache Airflow before 3.4.0
Official advisory · high-confidence parse· fetched 1 day ago·verify at source
Mitigation checklist
- Users should upgrade to apache-airflow 3.4.0 or later, which masks these values and restricts the affected audit rows to authorized users.
- Airflow 2 has reached end of life and will not receive a fix, so Airflow 2 users should upgrade to Apache Airflow 3.4.0 or later.
Official advisory · high-confidence parse· fetched 1 day ago·verify at source
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