CVE-2026-62391 Details
Description
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. Users are recommended to upgrade to version 1.12.0, which fixes the issue.
A vulnerability exists in Apache Kyuubi versions 1.6.0 prior to 1.12.0, allowing clients to bypass the server-side configuration allowlist for local session directories. This is achieved by using unprefixed Spark configuration aliases, and can be exploited by any client with access to the Apache Kyuubi Server through Kyuubi frontend protocols.
Users are advised to upgrade to Apache Kyuubi version 1.12.0 or later, which addresses this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jul 31, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://lists.apache.org/thread/vo4k4nxz23kfzrpp120nsojb0vrkx4w1 | [email protected] | Mailing ListVendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-22 | Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') | [email protected] |
| CWE-27 | Path Traversal: 'dir/../../filename' | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| apache kyuubi | >= 1.6.0, < 1.12.0 |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Aug 10, 2026 | Initial Analysis | [email protected] |
| Jul 31, 2026 | CVE Modified | CISA-ADP |
| Jul 31, 2026 | New CVE Received | [email protected] |