Vulnerability Description
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.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Apache | Kyuubi | >= 1.7.0, < 1.12.0 |
Related Weaknesses (CWE)
References
- https://lists.apache.org/thread/b0qx2v8k5v4rrqsh53pb146t7so0lmrkMailing ListVendor Advisory
- http://www.openwall.com/lists/oss-security/2026/07/30/5Mailing ListThird Party Advisory
FAQ
What is CVE-2026-52680?
CVE-2026-52680 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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 endpo...
How severe is CVE-2026-52680?
CVE-2026-52680 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-52680?
Check the references section above for vendor advisories and patch information. Affected products include: Apache Kyuubi.