Medium severity · published Jul 7, 2026
CVE-2026-48892
Apache Airflow: Config API leaks per-key secrets backend kwargs - masker bypass on synthetic options
6.5
CVSS
0.7%
EPSS
No
On KEV
Description
The Config API in Apache Airflow surfaced per-key secrets-backend overrides (environment variables like `AIRFLOW__SECRETS__BACKEND_KWARG__SECRET_ID` and `AIRFLOW__WORKERS__SECRETS_BACKEND_KWARG__SECRET_ID`) as synthetic config options whose option names were not in `sensitive_config_values`, so the masker did not redact them. An authenticated UI/API user with Config read permission could retrieve plaintext secrets-backend credentials (Vault `role_id` / `secret_id`, etc.) from the Config API output. Affects deployments that configure secrets backends via per-key environment overrides. Users are advised to upgrade to `apache-airflow` 3.3.0 or later.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 52% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AA
Apache Airflow · Apache Software Foundation
before 3.3.0 · source: vendor
AI
Airflow · Apache
before 3.3.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-48892
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-48892
Issue Tracking
https://github.com/apache/airflow/pull/67622
Vendor Advisory
https://lists.apache.org/thread/pq5yy40079h6tzh3fxvw28dd8dbk72hk
Third Party Advisory
http://www.openwall.com/lists/oss-security/2026/07/07/4
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