Medium severity · published Aug 12, 2026
CVE-2026-65017
Apache Airflow: Config API: team-scoped Celery broker secret disclosed to a Viewer (multi-team masking bypass)
6.5
CVSS
0.4%
EPSS
No
On KEV
Description
Apache Airflow's Config API did not mask team-scoped sensitive configuration values in multi-team deployments. When an administrator has enabled multi-team mode and exposed the Config API, an authenticated Viewer holding only configuration-read access — with no prior access to the secret — could read a team-scoped Celery broker URL, including its embedded credentials, in cleartext, while the equivalent global option was correctly masked. The secrets masker matched only base section and option names and did not normalize team-prefixed sections before the sensitivity check (CWE-200). This is a distinct masker bypass from CVE-2026-48828 and CVE-2026-48892: deployments that upgraded to apache-airflow 3.3.0 to address those issues remain affected by this team-scoped variant. Users are advised to upgrade to apache-airflow 3.3.1 or later, which normalizes team-scoped sections before masking.
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)0.4% · higher than 33% 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
3.3.0 before 3.3.1 · source: vendor
AI
Airflow · Apache
3.3.0 before 3.3.1 · source: NVD
Affected product
AA
Apache Airflow
Apache Software Foundation
More from Apache Airflow
8.8
CVE-2020-11978
Apache Airflow Command Injection
9.8
CVE-2026-33264
Apache Airflow: DAG author RCE on webserver via unrestricted import_string() in BaseSerialization.deserialize()
9.8
CVE-2017-17836
In Apache Airflow 1.8.2 and earlier, an experimental Airflow feature displayed authenticated cookies, as well as passwords to databases used by Airflow
9.1
CVE-2026-86473
Apache Airflow: Logout ignores a presented Authorization bearer token, leaving it revocable only by expiry
9.1
CVE-2026-42252
Apache Airflow: BashOperator Jinja2 injection via dag_run.conf — low-privilege user pattern