CVE-2026-28779

Apache Airflow: Path of session token in cookie does not consider base_url - session hijacking via co-hosted applications

Published Mar 17, 2026 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-4fhm-p86v-hwpx Apache Airflow: Path of session token in cookie does not consider base_url - session hijacking via co-hosted applications
History
Type Values Removed Values Added
First Time appeared Apache
Apache airflow
CPEs cpe:2.3:a:apache:airflow:*:*:*:*:*:*:*:*
Vendors & Products Apache
Apache airflow
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Apache Airflow: Path of session token in cookie does not consider base_url - session hijacking via co-hosted applications
Weaknesses CWE-668
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
apache
Published
Updated
Nov 3, 2026, 6:53 AM
Reserved
Mar 3, 2026, 10:12 AM
Status
Analyzed
Published
Mar 17, 2026, 11:16 AM
Modified
Nov 3, 2026, 7:18 AM