Apache Airflow: Connections test API: team-scope guard bypass resolves another team's environment Connection
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · None · Low
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and GitHub. Impact type from CWE-639.
Summary
Apache Airflow's environment-variable secrets backend resolved a team-scoped Connection or Variable from the wrong team's scope. The guard meant to prevent this only ran when no team scope was supplied, and its pattern could not match a team name containing an underscore, which team names are allowed to contain. When the guard did not apply, the lookup fell through to an unconditional global read that resolved the stored `AIRFLOW_CONN__<TEAM>___<ID>` variable regardless of which team asked. In multi-team mode an authenticated user of one team could therefore have `POST /api/v2/connections/test` resolve another team's Connection and authenticate outward with that team's credentials; the endpoint uses the credentials rather than returning them. Exploitation requires `[core] multi_team` enabled, `[core] test_connection` set to `Enabled` (it ships `Disabled`), team-scoped secrets provisioned as environment variables in the API-server process, and knowledge of the encoded identifier. Redirecting the test at an attacker-controlled host is separately blocked. Users are advised to upgrade to apache-airflow 3.3.1 or later.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA Apache Airflow (Apache Software Foundation) Fixed in 3.0.0
- Fix · CNA Apache Airflow (Apache Software Foundation) Fixed in 3.3.1
- Fix · GHSA-75mg-c62r-v95g apache-airflow (PyPI) Fixed in 3.3.1 Advisory →
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Apache Airflow 3.3.1
12 records Highest priority Priority MEDIUM 2 MEDIUM, 10 LOW
Other records, highest priority first
- TI-2026-47748 Apache Airflow: DAG-author remote code execution on the Scheduler via a Serde `Callback` deserialization gadgetPriority MEDIUM 41
- TI-2026-41827 Deserialization of untrusted data in Apache AirflowPriority MEDIUM 41
- TI-2026-47565 Apache Airflow: DAG-author remote code execution on the Scheduler via awaiting_input next_kwargs deserializationPriority LOW 39
- Release ·
Apache Airflow 3.0.0
8 records Highest priority Priority LOW 8 LOW
Other records, highest priority first
- TI-2026-48479 Apache Airflow: Authorization bypass in the Backfill API through conflicting interpretations of the backfill idPriority LOW 33
- TI-2026-48482 Apache Airflow: Cross-team authorization bypass in the asset materialization and dag-run result endpointsPriority LOW 29
- TI-2026-48480 Apache Airflow: Bulk Variable and Connection endpoints record secret values in the audit log in cleartextPriority LOW 29
Timeline
- 2026-10-02 Threatist record created from CVE-2026-68076
- 2026-10-03 Alias added: GHSA-75mg-c62r-v95g
- 2026-11-03 Fix available: [email protected], [email protected] · CNA
References
Patch 3
Advisory 3
Other 5
- https://github.com/apache/airflow/commit/e0cac1f6b2ddd473c9e6440ee0acc32b7b6581fc
- https://github.com/apache/airflow/commit/ed87a1a024a55aaa494e6a718cb876f0cbe47b44
- https://github.com/apache/airflow
- https://github.com/apache/airflow/releases/tag/3.3.1
- https://github.com/pypa/advisory-database/tree/main/vulns/apache-airflow/PYSEC-2026-3709.yaml
More Apache Airflow vulnerabilities
- TI-2020-10905 Missing authentication in Apache Airflow KEVCVSS 3.1CRITICAL 9.8
- TI-2020-09638 OS command injection in Apache Airflow KEVCVSS 3.1HIGH 8.8
- TI-2022-19017 Apache Airflow <2.4.0 has an RCE in a bash example CVSS 3.1HIGH 8.8
- TI-2021-16140 Apache Airflow: Variable Import endpoint missed authentication check CVSS 3.1CRITICAL 9.8
- TI-2022-08169 Apache Airflow: RCE in example DAGs CVSS 3.1HIGH 8.8
- TI-2024-26776 Apache Airflow: DAG Author Code Execution possibility in airflow-scheduler CVSS 3.1HIGH 8.8
Sources
- CVE-2026-68076 · CVE Program
- CVE-2026-68076 · NVD
- FIRST EPSS
- GHSA-75mg-c62r-v95g · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences