CVE-2026-30898
Apache Airflow: Bad example of BashOperator shell injection via dag_run.conf
Description
An example of BashOperator in Airflow documentation suggested a way of passing dag_run.conf in the way that could cause unsanitized user input to be used to escalate privileges of UI user to allow execute code on worker. Users should review if any of their own DAGs have adopted this incorrect advice.
INFO
Published Date :
April 18, 2026, 7:16 a.m.
Last Modified :
April 18, 2026, 7:16 a.m.
Remotely Exploit :
No
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-30898
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Update Airflow to the latest version.
- Review DAGs for insecure handling of user input.
- Avoid passing unsanitized configuration to BashOperator.
- Sanitize all user-provided configuration data.
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-2026-30898.
| URL | Resource |
|---|---|
| https://github.com/apache/airflow/pull/64129 | |
| https://lists.apache.org/thread/26zmhfj1t95c1hld2r14ho81nzh1bdc8 | |
| http://www.openwall.com/lists/oss-security/2026/04/17/7 |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-30898 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-2026-30898
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-2026-30898 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-30898 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.
-
New CVE Received by [email protected]
Apr. 18, 2026
Action Type Old Value New Value Added Description An example of BashOperator in Airflow documentation suggested a way of passing dag_run.conf in the way that could cause unsanitized user input to be used to escalate privileges of UI user to allow execute code on worker. Users should review if any of their own DAGs have adopted this incorrect advice. Added CWE CWE-77 Added Reference https://github.com/apache/airflow/pull/64129 Added Reference https://lists.apache.org/thread/26zmhfj1t95c1hld2r14ho81nzh1bdc8 -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Apr. 18, 2026
Action Type Old Value New Value Added Reference http://www.openwall.com/lists/oss-security/2026/04/17/7