CVE-2026-59244
Last modified
CVE-2026-59244 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. Apache Airflow's secrets masker did not mask `var.json` Variable values whose value is a dict in the Rendered Templates UI — the dict value failed an `isinstance(str)` guard — so a secret stored as a JSON Variable and referenced in a template via `var.json` was displayed in cleartext to any user with access to that task's Rendered Templates view. Users are advised to upgrade to apache-airflow 3.3.1 or later, which masks nested Variable values regardless of type.. EPSS estimates a 0.23% chance of exploitation in the next 30 days.
Description
Apache Airflow's secrets masker did not mask `var.json` Variable values whose value is a dict in the Rendered Templates UI — the dict value failed an `isinstance(str)` guard — so a secret stored as a JSON Variable and referenced in a template via `var.json` was displayed in cleartext to any user with access to that task's Rendered Templates view. Users are advised to upgrade to apache-airflow 3.3.1 or later, which masks nested Variable values regardless of type.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Apache | Airflow | < 3.3.1 |
References
- https://github.com/apache/airflow/pull/68975Issue Tracking, Patch
- https://lists.apache.org/thread/fncod6vttfo5fvmfs3h9r8s2kmm9j1n6Mailing List, Vendor Advisory
- https://www.openwall.com/lists/oss-security/2026/08/12/7Mailing List, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2026-59244?
How severe is CVE-2026-59244?
How do I fix CVE-2026-59244?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-59238Stored Cross-site Scripting (CWE-79) in the client-side repo…6.9
- CVE-2026-59239Stored Cross-site Scripting (CWE-79) in the email module in …8.6
- CVE-2026-5924The Getwid – Gutenberg Blocks plugin for WordPress is vulner…6.4
- CVE-2026-59240The vulnerability involves an Insecure Direct Object Referen…6.9
- CVE-2026-59242Apache Airflow's XCom `GET /api/v2/{...}/xcomEntries/{key}?d…5.4
- CVE-2026-59243The FAB auth manager's Azure AD OAuth login defaulted `verif…9.8
- CVE-2026-59245In the Apache Airflow FAB auth manager, a DAG whose `dag_id`…8.1
- CVE-2026-59246Allocation of resources without limits vulnerability in elix…6.3
- CVE-2026-59247Insufficient Verification of Data Authenticity vulnerability…7.6
- CVE-2026-59248Allocation of resources without limits vulnerability in nine…8.7
- CVE-2026-59249Inconsistent interpretation of HTTP requests (HTTP response …6.3
- CVE-2026-59250Classic buffer overflow in the Erlang/OTP megaco flex scanne…8.3
Are you affected by CVE-2026-59244?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST