What is CVE-2026-67260?

CVE-2026-67260 is a high-severity vulnerability in Apache Software Foundation Airflow, classified under Deserialization of Untrusted Data. CVSS score: 7.3/10. Published 2026-08-12.

How severe is CVE-2026-67260?

High severity. CVSS v3 base score is 7.3 out of 10.

Deserialization in Apache Software Foundation Airflow

CVE-2026-67260

Apache Airflow 3.3.0 moved human-in-the-loop tasks from the triggerer to a new `awaiting_input` task state swept by the scheduler. That sweep deserializes the task instance's `next_kwargs` without an allow-list, so a Dag author — who contr…

Vulnerability class: Insecure Deserialization

CVSS v3 metric

CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.

Affected products

Apache Software Foundation Airflow — versions 3.3.0

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

References

security@apache.org (patch)
security@apache.org (related)
security@apache.org (vendor-advisory)

Frequently asked questions

What is CVE-2026-67260?: CVE-2026-67260 is a high-severity vulnerability in Apache Software Foundation Airflow, classified under Deserialization of Untrusted Data. CVSS score: 7.3/10. Published 2026-08-12.
How severe is CVE-2026-67260?: High severity. CVSS v3 base score is 7.3 out of 10.