CVE-2026-52680: Apache Kyuubi: REST batch multipart upload path traversal allows controlled file write
Apache Kyuubi REST batch multipart upload handling uses the client-supplied multipart filename when creating a temporary uploaded resource. A remote attacker who can access the REST batch upload endpoint can provide path traversal sequences in the filename and cause the Kyuubi server process to write controlled content outside the intended upload directory, subject to filesystem permissions.
This issue affects Apache Kyuubi: from 1.7.0 through 1.11.1.
Users are recommended to upgrade to version 1.12.0, which fixes the issue.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Apache Kyuubito a version that resolves this vulnerability.Fixed in 1.12.0
Event History
Frequently Asked Questions
What is the severity of CVE-2026-52680?
CVE-2026-52680 has a risk score of 57, indicating a moderate severity level.
What does CVE-2026-52680 affect?
CVE-2026-52680 affects the Apache Kyuubi REST batch multipart upload functionality.
How does CVE-2026-52680 allow for a controlled file write?
CVE-2026-52680 allows remote attackers to exploit path traversal sequences in the multipart filename provided during uploads.
How can I mitigate CVE-2026-52680?
Mitigating CVE-2026-52680 involves validating and sanitizing user inputs, especially filenames during the REST batch upload process.
Is there a fix available for CVE-2026-52680?
As of now, users should apply any available security patches released by the Apache Kyuubi project to resolve CVE-2026-52680.