CVE Catalog

CVE-2026-40948

MediumCVSS 5.4
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.40%

34th percentile - higher than 34% of all known CVEs

Summary

The Keycloak authentication manager in apache-airflow-providers-keycloak did not generate or validate the OAuth 2.0 state parameter on the login/login-callback flow and did not use PKCE. An attacker with a Keycloak account in the same realm could deliver a crafted callback URL to a victim's browser and cause the victim to be logged into the attacker's Airflow session (login-CSRF / session fixation).

Risk Assessment

An attacker could hijack a victim's session and harvest credentials the victim subsequently stores in Airflow Connections. This could lead to theft of credentials for external systems.

Recommendation

Upgrade apache-airflow-providers-keycloak to version 0.7.0 or later. Check Airflow Connections for credentials that may have been exposed.

Related vulnerabilities

Original NVD description (English source)

The Keycloak authentication manager in `apache-airflow-providers-keycloak` did not generate or validate the OAuth 2.0 `state` parameter on the login / login-callback flow, and did not use PKCE. An attacker with a Keycloak account in the same realm could deliver a crafted callback URL to a victim's browser and cause the victim to be logged into the attacker's Airflow session (login-CSRF / session fixation), where any credentials the victim subsequently stored in Airflow Connections would be harvestable by the attacker. Users are advised to upgrade `apache-airflow-providers-keycloak` to 0.7.0 or later.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS