CVE-2026-38743 Details
Description
The authenticated /ui/dags endpoint did not enforce per-DAG access control on embedded Human-in-the-Loop (HITL) and TaskInstance records: a logged-in Airflow user with read access to at least one DAG could retrieve HITL prompts (including their request parameters) and full TaskInstance details for DAGs outside their authorized scope. Because HITL prompts and TaskInstance fields routinely carry operator parameters and free-form context attached to a task, the leak widens visibility of DAG-run data beyond the intended per-DAG RBAC boundary for every authenticated user. Users are recommended to upgrade to version 3.2.1 , which fixes this issue.
A vulnerability exists in the Apache Airflow '/ui/dags' endpoint prior to version 3.2.1, where per-DAG access control is not properly enforced on embedded Human-in-the-Loop (HITL) and TaskInstance records. This flaw allows authenticated users with read access to at least one DAG to access HITL prompts, including request parameters, and full TaskInstance details for DAGs outside their authorized scope. The exposed HITL prompts and TaskInstance fields often contain operator parameters and free-form context related to tasks, thereby breaching the intended per-DAG role-based access control (RBAC) for all authenticated users.
Users are advised to upgrade to Apache Airflow version 3.2.1 or later, which addresses this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Apr 24, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2026/04/24/3 | CVE | Mailing ListThird Party Advisory |
| https://github.com/apache/airflow/pull/64822 | [email protected] | Issue TrackingPatch |
| https://lists.apache.org/thread/sk2wj0x48o8qb4p7c47gvnhjbm0mg396 | [email protected] | Mailing ListVendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-1220 | Insufficient Granularity of Access Control | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| apache airflow | < 3.2.1 |
CPE
Remediation
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Change History
6 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 27, 2026 | Initial Analysis | [email protected] |
| Apr 24, 2026 | CVE Modified | CVE |
| Apr 24, 2026 | CVE Modified | CISA-ADP |
| Apr 24, 2026 | New CVE Received | [email protected] |