CVE-2026-52680

critical · 9.8

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.

9.8

CVSS

0.8%

EPSS (exploit prob.)

56th

EPSS percentile

2026-07-30

Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-22CWE-73

Affected products

Vendor	Product	Affected versions
apache	kyuubi	>= 1.7.0, < 1.12.0

Check a specific version with /api/v1/cve/match.

References

https://lists.apache.org/thread/b0qx2v8k5v4rrqsh53pb146t7so0lmrk
http://www.openwall.com/lists/oss-security/2026/07/30/5

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-52680