CVE-2026-62391 Apache Kyuubi: kyuubi.session.local.dir.allow.list bypass via unprefixed Spark file-conf aliases

The security fix for CVE-2025-66518 is incomplete. Any client who can access to Apache Kyuubi Server via Kyuubi frontend protocols can bypass server-side config kyuubi.session.local.dir.allowlist via unprefixed Spark config aliases. This issue affects Apache Kyuubi: from 1.6.0 before 1.12.0. User...

Directory Traversal

Overview Affected versions of this package are vulnerable to Directory Traversal through Kyuubi frontend protocols. An attacker can obtain server credentials, including keytabs, and impersonate other users by accessing local files outside the configured kyuubi.session.local.dir.allow.list. The...

CVE-2025-66518

Any client who can access to Apache Kyuubi Server via Kyuubi frontend protocols can bypass server-side config kyuubi.session.local.dir.allow.list and use local files which are not listed in the config. This issue affects Apache Kyuubi: from 1.6.0 through 1.10.2. Users are recommended to upgrade t...