How severe is CVE-2026-28779?

CVE-2026-28779 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2026-28779 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-28779?

CVE-2026-28779 affects Apache Airflow. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-28779?

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-2026-28779 have an EU (EUVD) identifier?

Yes. CVE-2026-28779 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-12558.

When was CVE-2026-28779 published?

CVE-2026-28779 was published on 2026-03-17 and last updated on 2026-06-17.

CVE-2026-28779

CVE-2026-28779 is a high-severity vulnerability in Apache Airflow with a CVSS 3.x base score of 7.5. 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-668.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (48th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-12558
Weakness: CWE-668
Affected product: Apache Airflow
Published: 2026-03-17
Last modified: 2026-06-17

Description

Apache Airflow versions 3.1.0 through 3.1.7 session token (_token) in cookies is set to path=/ regardless of the configured [webserver] base_url or [api] base_url. This allows any application co-hosted under the same domain to capture valid Airflow session tokens from HTTP request headers, allowing full session takeover without attacking Airflow itself. Users are recommended to upgrade to Apache Airflow 3.1.8 or later, which resolves this issue.

Frequently asked questions

What is CVE-2026-28779?: Apache Airflow versions 3.1.0 through 3.1.7 session token (_token) in cookies is set to path=/ regardless of the configured [webserver] base_url or [api] base_url. This allows any application co-hosted under the same domain to capture valid Airflow session tokens from HTTP request headers, allowing full session takeover without attacking Airflow itself. Users are recommended to upgrade to Apache Airflow 3.1.8 or later, which resolves this issue.
How severe is CVE-2026-28779?: CVE-2026-28779 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2026-28779 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-28779?: CVE-2026-28779 affects Apache Airflow. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-28779?: 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-2026-28779 have an EU (EUVD) identifier?: Yes. CVE-2026-28779 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-12558.
When was CVE-2026-28779 published?: CVE-2026-28779 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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