CVE-2026-75158

Apache Airflow: Assets events API returns asset events for every Dag with no per-Dag authorization filter

Published: Sep 21, 2026Updated: Sep 25, 2026 Sources: CVE List NVDCWE-200

4.3MEDIUM

Description

Apache Airflow's `/assets/events` API returned asset events for every Dag in the deployment, with no filter restricting them to the Dags the caller is authorized to read. Any authenticated user holding asset-read access could therefore enumerate asset events — including the source Dag ID, task ID, run ID and event timestamps — for Dags they have no permission to see. Because the filter was also absent from the count query, `total_entries` and pagination disclosed the existence of hidden Dags even without inspecting individual rows. Deployments are affected whenever per-Dag access control is used to separate teams or tenants; no special configuration is required. Upgrade to apache-airflow 3.3.2 or later.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:LPrivileges Required

Low

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:LConfidentiality

Low

I:NIntegrity

None

A:NAvailability

None

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Weaknesses

CWE-200

Affected Products

Apache Software Foundation

oss-project·USaka apache foundation

Apache AirflowOn-premWeb App

Web & CMS Plugins

apache

oss-project·USaka apache http server, apache httpd

airflowOn-premLibrary

OSS Libraries / generic-library

Exploitability

Official Patch Available

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique

Collection

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References

https://github.com/apache/airflow/pull/71741

github.com

https://lists.apache.org/thread/rx5lg86l0qkjl2s7dtmpqxjq0xplr4fy

lists.apache.org

http://www.openwall.com/lists/oss-security/2026/09/21/3

openwall.com

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