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.
{
"cna_assigner": "apache",
"cwe_ids": [
"CWE-352"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40948.json"
}{
"extracted_events": [
{
"range": [
{
"introduced": "0.0.1"
},
{
"fixed": "0.7.0"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
},
{
"cpe": "cpe:2.3:a:apache:apache-airflow-providers-keycloak:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0.0.1"
},
{
"fixed": "0.7.0"
}
],
"source": "CPE_RANGE"
}
]
}