How severe is CVE-2026-30898?

CVE-2026-30898 has a CVSS 3.x base score of 8.8, 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 high.

Is CVE-2026-30898 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-30898?

CVE-2026-30898 affects Apache Airflow. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-30898?

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-2026-30898 have an EU (EUVD) identifier?

Yes. CVE-2026-30898 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-23660.

When was CVE-2026-30898 published?

CVE-2026-30898 was published on 2026-04-18 and last updated on 2026-06-17.

CVE-2026-30898

CVE-2026-30898 is a high-severity vulnerability in Apache Airflow with a CVSS 3.x base score of 8.8. 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-77.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-23660
Weakness: CWE-77
Affected product: Apache Airflow
Published: 2026-04-18
Last modified: 2026-06-17

Description

An example of BashOperator in Airflow documentation suggested a way of passing dag_run.conf in the way that could cause unsanitized user input to be used to escalate privileges of UI user to allow execute code on worker. Users should review if any of their own DAGs have adopted this incorrect advice.

Frequently asked questions

What is CVE-2026-30898?: An example of BashOperator in Airflow documentation suggested a way of passing dag_run.conf in the way that could cause unsanitized user input to be used to escalate privileges of UI user to allow execute code on worker. Users should review if any of their own DAGs have adopted this incorrect advice.
How severe is CVE-2026-30898?: CVE-2026-30898 has a CVSS 3.x base score of 8.8, 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 high.
Is CVE-2026-30898 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-30898?: CVE-2026-30898 affects Apache Airflow. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-30898?: 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-2026-30898 have an EU (EUVD) identifier?: Yes. CVE-2026-30898 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-23660.
When was CVE-2026-30898 published?: CVE-2026-30898 was published on 2026-04-18 and last updated on 2026-06-17.

References

Affected products (1)

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

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