CVE-2026-59244Apache Airflow: Secrets masker: `var.json` Variable values not masked in the Rendered Templates UI
Updated under an hour ago ()
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It affects Apache Software Foundation Apache Airflow and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 6.5 MEDIUM (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- Weakness (CWE)
- CWE-312
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- apache
- NVD analysis
- Modified
- Record last updated
- Sep 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Apache Software Foundation Apache Airflow apache_software_foundation:apache_airflow (from the name) | before 3.3.1 | CNA record |
apache airflow apache:airflow | before 3.3.1 | NVD |
References
- https://github.com/apache/airflow/pull/68975patch, issue-tracking
- https://lists.apache.org/thread/fncod6vttfo5fvmfs3h9r8s2kmm9j1n6vendor-advisory, mailing-list
- http://www.openwall.com/lists/oss-security/2026/08/12/7mailing-list, third-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.