High severity · published Mar 17, 2026
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
7.5
CVSS
0.7%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 53% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AI
Airflow · Apache
3.0.0 before 3.1.8 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-28779
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-28779
Issue Tracking
https://github.com/apache/airflow/pull/62771
Mailing List
https://lists.apache.org/thread/r4n5znb8mcq14wo9v8ndml36nxlksdqb
Mailing List
http://www.openwall.com/lists/oss-security/2026/03/17/3
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