CVE-2026-28779
Apache Airflow: Path of session token in cookie does not consider base_url - session hijacking via co-hosted applications
7.5
HIGH
CVSS 3.1
EPSS 0.03%
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.
How to fix CVE-2026-28779
To remediate CVE-2026-28779, upgrade the affected package to a fixed version below.
- —upgrade to 3.1.8 or later
- —upgrade to 3.1.8 or later
- —upgrade to 3.1.8 or later
Is CVE-2026-28779 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- >= 3.0.0, < 3.1.8
- >= 3.0.0, < 3.1.8
- >= 3.0.0, < 3.1.8
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |