Session Token Exposure in Apache Airflow by Apache
CVE-2026-28779

7.5HIGH

Key Information:

Vendor

Apache
Status
Apache Airflow
Vendor
CVE Published:
17 March 2026

What is CVE-2026-28779?

Apache Airflow versions 3.1.0 through 3.1.7 contain a vulnerability where the session token (_token) in cookies is incorrectly set to path=/, regardless of the configured webserver or API base URLs. This flaw enables any application co-hosted under the same domain to capture valid Airflow session tokens from HTTP request headers. Such exposure permits attackers to perform full session takeover without requiring direct attacks on Airflow itself. Users are strongly advised to upgrade to Apache Airflow 3.1.8 or later to mitigate this risk.

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Deploy the Patch

Affected Version(s)

Apache Airflow 3.0.0 < 3.1.8

References

https://github.com/apache/airflow/pull/62771
patch
https://lists.apache.org/thread/r4n5znb8mcq14wo9v8ndml36n...
vendor-advisory

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Daniel Wolf
Daniel Wolf
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