What is the CVSS score of CVE-2026-30911?

CVE-2026-30911 has a CVSS 3.1 base score of 8.1 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N. EPSS exploitation probability: 0.0%.

Which versions of Apache Airflow are affected by CVE-2026-30911?

Apache Airflow instances running versions 3.1.0-3.1.7 contain an authorization bypass in the Human-in-the-Loop workflow approval system, allowing any authenticated user to read, approve, or reject…. A patch is available.

How to fix or mitigate CVE-2026-30911?

Within 24 hours: Inventory all Apache Airflow deployments and identify those running versions 3.1.0-3.1.7. Restrict access to HITL endpoints to authorized users only if possible. Within 7 days: Complete patching to Airflow 3.1.8 or later across all affected instances, prioritizing production environments first. Within 30 days: Audit HITL workflow approval logs for unauthorized approvals or rejections during the vulnerability window and implement additional monitoring on these endpoints.

Apache Airflow CVE-2026-30911

EUVD-2026-12566 HIGH

Missing Authorization (CWE-862)

2026-03-17 apache

GHSA-8x34-9q3v-h7g8

Authentication Bypass Apache Debian Apache Airflow

8.1

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.1 HIGH

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

Lifecycle Timeline

EUVD ID Assigned

Mar 17, 2026 - 11:57 euvd

EUVD-2026-12566

Analysis Generated

Mar 17, 2026 - 11:57 vuln.today

Patch released

Mar 17, 2026 - 11:57 nvd

Patch available

CVE Published

Mar 17, 2026 - 10:53 nvd

HIGH 8.1

Blast Radius

ecosystem impact

† from your stack dependencies † transitive graph · vuln.today resolves 4-path depth

7 pypi packages depend on apache-airflow (5 direct, 2 indirect)

Ecosystem-wide dependent count for version 3.1.0.

DescriptionCVE.org

Apache Airflow versions 3.1.0 through 3.1.7 missing authorization vulnerability in the Execution API's Human-in-the-Loop (HITL) endpoints that allows any authenticated task instance to read, approve, or reject HITL workflows belonging to any other task instance.

Users are recommended to upgrade to Apache Airflow 3.1.8 or later, which resolves this issue.

AnalysisAI

CVE-2026-30911 is a security vulnerability (CVSS 8.1) that allows any authenticated task instance. High severity vulnerability requiring prompt remediation. Vendor patch is available.