CVE-2026-62391

Apache Kyuubi versions 1.6.0 before 1.12.0 are vulnerable to Directory Traversal due to incomplete fixes for CVE-2025-66518. An attacker can bypass the kyuubi.session.local.dir.allowlist configuration by submitting Spark frontend requests that use unprefixed Spark config aliases (such as files) i...

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...