How severe is CVE-2026-30911?

CVE-2026-30911 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2026-30911 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-30911?

CVE-2026-30911 affects Apache Airflow. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-30911?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-30911 have an EU (EUVD) identifier?

Yes. CVE-2026-30911 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-12566.

When was CVE-2026-30911 published?

CVE-2026-30911 was published on 2026-03-17 and last updated on 2026-06-17.

CVE-2026-30911

CVE-2026-30911 is a high-severity vulnerability in Apache Airflow with a CVSS 3.x base score of 8.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-862.

Key facts

Severity: High (CVSS 3.x base score 8.1)
EPSS exploit prediction: 1% (52nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-12566
Weakness: CWE-862
Affected product: Apache Airflow
Published: 2026-03-17
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2026-30911?: 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.
How severe is CVE-2026-30911?: CVE-2026-30911 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2026-30911 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-30911?: CVE-2026-30911 affects Apache Airflow. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-30911?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-30911 have an EU (EUVD) identifier?: Yes. CVE-2026-30911 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-12566.
When was CVE-2026-30911 published?: CVE-2026-30911 was published on 2026-03-17 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:apache:airflow:*:*:*:*:*:*:*:*

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