CVE-2026-75158
Apache Airflow: Assets events API returns asset events for every Dag with no per-Dag authorization filter
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.
INFO
Published Date :
Sept. 21, 2026, 3:17 p.m.
Last Modified :
Sept. 25, 2026, 1:58 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | MEDIUM | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
Solution
- Upgrade Apache Airflow to version 3.3.2 or later.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-75158.
| URL | Resource |
|---|---|
| https://github.com/apache/airflow/pull/71741 | Issue Tracking Vendor Advisory |
| https://lists.apache.org/thread/rx5lg86l0qkjl2s7dtmpqxjq0xplr4fy | Mailing List Vendor Advisory |
| http://www.openwall.com/lists/oss-security/2026/09/21/3 | Mailing List Third Party Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-75158 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-75158
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-75158 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-75158 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Sep. 25, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:apache:airflow:*:*:*:*:*:*:*:* versions up to (excluding) 3.3.2 Added Reference Type Apache Software Foundation: https://github.com/apache/airflow/pull/71741 Types: Issue Tracking, Vendor Advisory Added Reference Type Apache Software Foundation: https://lists.apache.org/thread/rx5lg86l0qkjl2s7dtmpqxjq0xplr4fy Types: Mailing List, Vendor Advisory Added Reference Type CVE: http://www.openwall.com/lists/oss-security/2026/09/21/3 Types: Mailing List, Third Party Advisory -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Sep. 21, 2026
Action Type Old Value New Value Added Reference http://www.openwall.com/lists/oss-security/2026/09/21/3 -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Sep. 21, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N Added SSVC {'id': 'CVE-2026-75158', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-09-21T15:26:44.311869Z'} -
New CVE Received by [email protected]
Sep. 21, 2026
Action Type Old Value New Value Added 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. Added CWE CWE-200 Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/75xxx/CVE-2026-75158.json">CVE-2026-75158</a> Added Reference https://github.com/apache/airflow/pull/71741 Added Reference https://lists.apache.org/thread/rx5lg86l0qkjl2s7dtmpqxjq0xplr4fy