Cleartext Storage of Sensitive Information Affecting apache-airflow-core package, versions [,3.4.0)


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.11% (2nd percentile)

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  • Snyk IDSNYK-PYTHON-APACHEAIRFLOWCORE-22391874
  • published10 Nov 2026
  • disclosed9 Nov 2026
  • creditEunho Kim

Introduced: 9 Nov 2026

NewCVE-2026-50204  (opens in a new tab)
CWE-312  (opens in a new tab)

How to fix?

Upgrade apache-airflow-core to version 3.4.0 or higher.

Overview

Affected versions of this package are vulnerable to Cleartext Storage of Sensitive Information in the audit-log decorator (airflow/api_fastapi/logging/decorators.py), specifically in _mask_connection_fields and _mask_variable_fields, because the secrets masker matched only on configured sensitive key names rather than masking all values unconditionally. Connection extra field values stored under arbitrary key names and Variable values are written verbatim to the Log.extra column, allowing an authenticated low-privilege user with read access to the event-log or audit API to recover credentials they would not otherwise have access to.

Note: This is only exploitable by an authenticated user with read access to the event-log / audit API.

CVSS Base Scores

version 4.0
version 3.1