Improper Authentication

Apache Hive is vulnerable to improper authentication. The vulnerability is due to improper validation of SAML bearer tokens, which allows an unauthenticated network attacker to forge an Authorization: Bearer token and authenticate as an arbitrary Hive user, thereby obtaining an authenticated...

CVE-2026-53561

An improper authentication vulnerability in HiveServer2 SAML bearer-token validation in Apache Hive 4.0.0 through 4.2.0 and later unreleased branches on deployments using HTTP transport with hive.server2.authentication=SAML allows an unauthenticated network attacker to authenticate as an arbitrar...