---
cve: "CVE-2026-59244"
severity: "MEDIUM"
cvss: 6.5
epss: "23%"
vendor: "Apache Software Foundation"
kev: false
exploited: false
published: "2026-08-12 15:43:17"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-11T00:41:41+02:00"
---

# CVE-2026-59244

> 6.5 MEDIUM · 🧪 PoC

## Beschreibung

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-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Gering | warn |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Keine | good |
| A Verfügbarkeit | Keine | good |

## Patch verfügbar (OSV)

- 275ac7303fa702e232c277ac7f4929baa85464d2 (Commit)

## Referenzen

- <https://github.com/apache/airflow/pull/68975>
- <https://lists.apache.org/thread/fncod6vttfo5fvmfs3h9r8s2kmm9j1n6>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-59244) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_