PatchTheCEVCVE-2026-59244: Apache Airflow's secrets masker did not mask `var.json` Variable values whose value is a dict in the Rendered
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Routine
MEDIUM 6.5WATCHLISTUPGRADE
CVE-2026-59244 is a medium-severity flaw (CVSS 6.5) affecting airflow. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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 reg
Why this priority
- On your watchlist
A fixed release or distro patch exists.
Risk facts
| CVSS score | 6.5 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | Low |
| User interaction | None |
| EPSS exploit chance | 0.2% (top 87%) |
| CISA exploited list | No |
| Weakness | CWE-312 |
| Published | 2026-08-12 |
| Last modified | 2026-10-23 |
Publisher (CNA): Apache Software Foundation · Vendor: apache
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
apache airflow UPGRADE
Affected: < 3.3.1
Fixed in: 3.3.1
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy airflow || rpm -q airflow || airflow --version
2. UPGRADE to 3.3.1 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade airflow
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade airflow
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
Exact fixes by distribution
Python (pip) · apache-airflow · FIXED · 3.3.1 · vulnerable: < 3.3.1 · source
pip install --upgrade "apache-airflow>=3.3.1"
pip show apache-airflow
Fedora 46 · clementine · FIXED · 1.4.2-1.fc46 · FEDORA-2026-3e748ef4d3 · source
sudo dnf upgrade --advisory=FEDORA-2026-3e748ef4d3
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Related CVEs
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- CVE-2026-68968 HIGH 7.5 UPGRADE Apache Airflow's Backfill API authorized a request against a Dag id supplied by the caller whenever the `backf
- CVE-2026-65017 MEDIUM 6.5 UPGRADE Apache Airflow's Config API did not mask team-scoped sensitive configuration values in multi-team deployments