Apache Airflow Keycloak Provider up to 0.11.0 KeycloakJWTMiddleware session expiration

Summaryinfo

A vulnerability has been found in Apache Airflow Keycloak Provider up to 0.11.0 and classified as critical. Impacted is an unknown function of the component KeycloakJWTMiddleware. This manipulation causes session expiration. This vulnerability is tracked as CVE-2026-96806. The attack is possible to be carried out remotely. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability has been found in Apache Airflow Keycloak Provider up to 0.11.0 and classified as critical. Affected by this vulnerability is an unknown part of the component KeycloakJWTMiddleware. The manipulation with an unknown input leads to a session expiration vulnerability. The CWE definition for the vulnerability is CWE-613. According to WASC, "Insufficient Session Expiration is when a web site permits an attacker to reuse old session credentials or session IDs for authorization." As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

The Apache Airflow Keycloak auth manager did not end the session on logout: the logout route revoked the presented token, but `KeycloakJWTMiddleware` then issued a new, unrevoked token on the same response, so the user stayed logged in. Deployments using the Keycloak auth manager are affected: after a user logs out, anyone with later access to the same browser (for example on a shared workstation) can continue to act as that user. Users of apache-airflow-providers-keycloak are recommended to upgrade to apache-airflow-providers-keycloak 0.11.1 or later.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-96806 since 09/23/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 10/16/2026).

Upgrading to version 0.11.1 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2026-4005). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

• Apache Airflow

Productinfo

Type

• Business Process Management Software

Vendor

• Apache

Name

• Airflow Keycloak Provider

Version

• 0.1
• 0.2
• 0.3
• 0.4
• 0.5
• 0.6
• 0.7
• 0.8
• 0.9
• 0.10
• 0.11.0

License

• open-source

Website

• Vendor: https://www.apache.org/

CPE 2.3info

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Entryinfo

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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