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Vulnerability record · CVE-2026-49487 · published 7 July 2026

CVE-2026-49487: Apache airflow information exposure vulnerability

Apache · Airflow

In Apache Airflow before 3.3.0, the REST API task-instance detail and list endpoints returned a deferred task's trigger kwargs without masking. When a deferred operator passed a secret (for example a provider API key) into its trigger, any authenticated user with DAG-scoped task-instance read access for that DAG could read that secret in clear text while the task was deferred. Users should upgrade to apache-airflow 3.3.0 or later, which masks sensitive values in trigger kwargs returned by the API.

6.5 CVSS 3.1 Medium EPSS 0.66% · top 50.3% CWE-200 · Information exposure
6.5CVSS 3.1 base score
0.66%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
3References
16 Sep 2026Last modified by NVD

Description

In Apache Airflow before 3.3.0, the REST API task-instance detail and list endpoints returned a deferred task's trigger kwargs without masking. When a deferred operator passed a secret (for example a provider API key) into its trigger, any authenticated user with DAG-scoped task-instance read access for that DAG could read that secret in clear text while the task was deferred. Users should upgrade to apache-airflow 3.3.0 or later, which masks sensitive values in trigger kwargs returned by the API.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/apache/airflow/pull/67868 Issue Tracking
https://lists.apache.org/thread/qlw6pozlzlfhkvmbgqsbjlq6vj4v0pc4 Vendor Advisory
http://www.openwall.com/lists/oss-security/2026/07/07/6 Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-49487), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.