How severe is CVE-2026-27173?

CVE-2026-27173 has a CVSS 3.x base score of 8.7, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability low.

Is CVE-2026-27173 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-27173?

CVE-2026-27173 affects Apache Apache-airflow-providers-cncf-kubernetes. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-27173?

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-2026-27173 have an EU (EUVD) identifier?

Yes. CVE-2026-27173 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-30977.

When was CVE-2026-27173 published?

CVE-2026-27173 was published on 2026-05-19 and last updated on 2026-07-02.

CVE-2026-27173

CVE-2026-27173 is a high-severity vulnerability in Apache Apache-airflow-providers-cncf-kubernetes with a CVSS 3.x base score of 8.7. 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-538.

Key facts

Severity: High (CVSS 3.x base score 8.7)
EPSS exploit prediction: 0% (5th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-30977
Weakness: CWE-538
Affected product: Apache Apache-airflow-providers-cncf-kubernetes
Published: 2026-05-19
Last modified: 2026-07-02

Description

JWT tokens that were used by workers in Kubernetes Executors have been exposed to users who had read only access to Kuberentes Pods. This could allow users with just read-only access to perform actions that were only available to running tasks via Task SDK and potentially allow to modify state of Airflow Database for tasks.

Frequently asked questions

What is CVE-2026-27173?: JWT tokens that were used by workers in Kubernetes Executors have been exposed to users who had read only access to Kuberentes Pods. This could allow users with just read-only access to perform actions that were only available to running tasks via Task SDK and potentially allow to modify state of Airflow Database for tasks.
How severe is CVE-2026-27173?: CVE-2026-27173 has a CVSS 3.x base score of 8.7, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability low.
Is CVE-2026-27173 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-27173?: CVE-2026-27173 affects Apache Apache-airflow-providers-cncf-kubernetes. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-27173?: 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-2026-27173 have an EU (EUVD) identifier?: Yes. CVE-2026-27173 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-30977.
When was CVE-2026-27173 published?: CVE-2026-27173 was published on 2026-05-19 and last updated on 2026-07-02.

References

Affected products (1)

cpe:2.3:a:apache:apache-airflow-providers-cncf-kubernetes:*:*:*:*:*:*:*:*

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