CVE-2025-66518: Apache Kyuubi Server vulnerable to Path Traversal

January 5, 2026

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 to version 1.10.3 or upper, which fixes the issue.

References

github.com/advisories/GHSA-f8r6-6222-9pvc
github.com/apache/kyuubi
lists.apache.org/thread/xp460bwbyzdhho34ljd4nchyt2fmhodl
nvd.nist.gov/vuln/detail/CVE-2025-66518

Code Behaviors & Features

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