What’s Vulnerable › Vulnerabilities

CVE-2026-48828: Apache Airflow: Bulk JSON Variables bypass should_hide_value_for_key - redact() called without the key

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-07 · updated 2026-10-25
• Weakness: CWE-200

Description

The Bulk Variables API in Apache Airflow called the redactor without passing the variable's key, so the key-based `should_hide_value_for_key` check (which triggers on secret-suffixed key names like `*_password` / `*_token` / `*_secret`) could not fire for JSON-decodable variable values. An authenticated UI/API user with bulk Variable read permission could retrieve plaintext values from JSON variables whose key would otherwise trigger redaction. Affects deployments that store sensitive values in JSON-typed Airflow Variables under secret-suffixed key names. Users are advised to upgrade to `apache-airflow` 3.3.0 or later (the fix landed on `main` after 3.2.2; no 3.2.x backport).

Affected products

• Apache Airflow: before 3.3.0 — fixed in 3.3.0

How to fix

Upgrade to a fixed version: Apache Airflow 3.3.0. Check the vendor advisory for mitigations.

References

• https://github.com/apache/airflow/pull/67495
• https://lists.apache.org/thread/y9kf314t6dhnv994hr11wj3tbow847yc
• http://www.openwall.com/lists/oss-security/2026/07/07/2

Get alerted when CVE-2026-48828 or the next vulnerability affects your stack