CVE-2026-27173
Apache Airflow CNCF Kubernetes provider: JWT Token Exposure in KubernetesExecutor Command-Line Arguments
Description
JWT tokens that were used by workers in Kubernetes Executors have been exposed to users who had read only access to Kuberentes Pods. This could allow users with just read-only access to perform actions that were only available to running tasks via Task SDK and potentially allow to modify state of Airflow Database for tasks.
INFO
Published Date :
May 19, 2026, 8:16 p.m.
Last Modified :
July 2, 2026, 4:37 p.m.
Remotely Exploit :
No
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-27173
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.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | HIGH | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
Solution
- Limit read access to Kubernetes Pods.
- Prevent JWT token exposure to read-only users.
- Review and update Airflow security configurations.
- Apply necessary patches or updates.
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-2026-27173.
| URL | Resource |
|---|---|
| https://github.com/apache/airflow/pull/60108 | Issue Tracking Patch |
| https://lists.apache.org/thread/pk3m2z4s2rkmc0v6gh9hnch9spc6stqw | Mailing List Vendor Advisory |
| http://www.openwall.com/lists/oss-security/2026/05/19/35 | 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-2026-27173 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-2026-27173
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-2026-27173 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-27173 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.
-
Reanalysis by [email protected]
Jul. 02, 2026
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:apache:airflow_cncf_kubernetes:*:*:*:*:*:*:*:* versions up to (excluding) 10.17.0 OR *cpe:2.3:a:apache:apache-airflow-providers-cncf-kubernetes:*:*:*:*:*:*:*:* versions up to (excluding) 10.17.0 -
Initial Analysis by [email protected]
Jun. 30, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:apache:airflow_cncf_kubernetes:*:*:*:*:*:*:*:* versions up to (excluding) 10.17.0 Added Reference Type Apache Software Foundation: https://github.com/apache/airflow/pull/60108 Types: Issue Tracking, Patch Added Reference Type Apache Software Foundation: https://lists.apache.org/thread/pk3m2z4s2rkmc0v6gh9hnch9spc6stqw Types: Mailing List, Vendor Advisory Added Reference Type CVE: http://www.openwall.com/lists/oss-security/2026/05/19/35 Types: Mailing List, Third Party Advisory -
CVE Modified by [email protected]
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Apache Software Foundation', 'product': 'Apache Airflow CNCF Kubernetes provider', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '10.17.0', 'versionType': 'semver'}], 'packageName': 'apache-airflow-providers-cncf-kubernetes', 'collectionURL': 'https://pypi.python.org', 'defaultStatus': 'unaffected'}] -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 17, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-27173', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-05-19T19:56:34.624709Z'} -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
May. 19, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
May. 19, 2026
Action Type Old Value New Value Added Reference http://www.openwall.com/lists/oss-security/2026/05/19/35 -
New CVE Received by [email protected]
May. 19, 2026
Action Type Old Value New Value Added Description JWT tokens that were used by workers in Kubernetes Executors have been exposed to users who had read only access to Kuberentes Pods. This could allow users with just read-only access to perform actions that were only available to running tasks via Task SDK and potentially allow to modify state of Airflow Database for tasks. Added CWE CWE-538 Added Reference https://github.com/apache/airflow/pull/60108 Added Reference https://lists.apache.org/thread/pk3m2z4s2rkmc0v6gh9hnch9spc6stqw